diff --git a/package-lock.json b/package-lock.json
index ea3045b..a95bbbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -297,9 +297,9 @@
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+				"brace-expansion": {
+					"version": "1.1.11",
 					"bundled": true,
 					"dev": true,
-					"optional": true
+					"requires": {
+						"balanced-match": "^1.0.0",
+						"concat-map": "0.0.1"
+					}
 				},
-				"co": {
-					"version": "4.6.0",
+				"chownr": {
+					"version": "1.0.1",
 					"bundled": true,
 					"dev": true,
 					"optional": true
@@ -3856,14 +3846,6 @@
 					"bundled": true,
 					"dev": true
 				},
-				"combined-stream": {
-					"version": "1.0.5",
-					"bundled": true,
-					"dev": true,
-					"requires": {
-						"delayed-stream": "~1.0.0"
-					}
-				},
 				"concat-map": {
 					"version": "0.0.1",
 					"bundled": true,
@@ -3877,35 +3859,11 @@
 				"core-util-is": {
 					"version": "1.0.2",
 					"bundled": true,
-					"dev": true
-				},
-				"cryptiles": {
-					"version": "2.0.5",
-					"bundled": true,
 					"dev": true,
-					"requires": {
-						"boom": "2.x.x"
-					}
-				},
-				"dashdash": {
-					"version": "1.14.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"assert-plus": "^1.0.0"
-					},
-					"dependencies": {
-						"assert-plus": {
-							"version": "1.0.0",
-							"bundled": true,
-							"dev": true,
-							"optional": true
-						}
-					}
+					"optional": true
 				},
 				"debug": {
-					"version": "2.6.8",
+					"version": "2.6.9",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
@@ -3914,16 +3872,11 @@
 					}
 				},
 				"deep-extend": {
-					"version": "0.4.2",
+					"version": "0.5.1",
 					"bundled": true,
 					"dev": true,
 					"optional": true
 				},
-				"delayed-stream": {
-					"version": "1.0.0",
-					"bundled": true,
-					"dev": true
-				},
 				"delegates": {
 					"version": "1.0.0",
 					"bundled": true,
@@ -3931,74 +3884,25 @@
 					"optional": true
 				},
 				"detect-libc": {
-					"version": "1.0.2",
+					"version": "1.0.3",
 					"bundled": true,
 					"dev": true,
 					"optional": true
 				},
-				"ecc-jsbn": {
-					"version": "0.1.1",
+				"fs-minipass": {
+					"version": "1.2.5",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
 					"requires": {
-						"jsbn": "~0.1.0"
-					}
-				},
-				"extend": {
-					"version": "3.0.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"extsprintf": {
-					"version": "1.0.2",
-					"bundled": true,
-					"dev": true
-				},
-				"forever-agent": {
-					"version": "0.6.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"form-data": {
-					"version": "2.1.4",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"asynckit": "^0.4.0",
-						"combined-stream": "^1.0.5",
-						"mime-types": "^2.1.12"
+						"minipass": "^2.2.1"
 					}
 				},
 				"fs.realpath": {
 					"version": "1.0.0",
 					"bundled": true,
-					"dev": true
-				},
-				"fstream": {
-					"version": "1.0.11",
-					"bundled": true,
 					"dev": true,
-					"requires": {
-						"graceful-fs": "^4.1.2",
-						"inherits": "~2.0.0",
-						"mkdirp": ">=0.5 0",
-						"rimraf": "2"
-					}
-				},
-				"fstream-ignore": {
-					"version": "1.0.5",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"fstream": "^1.0.0",
-						"inherits": "2",
-						"minimatch": "^3.0.0"
-					}
+					"optional": true
 				},
 				"gauge": {
 					"version": "2.7.4",
@@ -4016,27 +3920,11 @@
 						"wide-align": "^1.1.0"
 					}
 				},
-				"getpass": {
-					"version": "0.1.7",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"assert-plus": "^1.0.0"
-					},
-					"dependencies": {
-						"assert-plus": {
-							"version": "1.0.0",
-							"bundled": true,
-							"dev": true,
-							"optional": true
-						}
-					}
-				},
 				"glob": {
 					"version": "7.1.2",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"fs.realpath": "^1.0.0",
 						"inflight": "^1.0.4",
@@ -4046,64 +3934,35 @@
 						"path-is-absolute": "^1.0.0"
 					}
 				},
-				"graceful-fs": {
-					"version": "4.1.11",
-					"bundled": true,
-					"dev": true
-				},
-				"har-schema": {
-					"version": "1.0.5",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"har-validator": {
-					"version": "4.2.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"ajv": "^4.9.1",
-						"har-schema": "^1.0.5"
-					}
-				},
 				"has-unicode": {
 					"version": "2.0.1",
 					"bundled": true,
 					"dev": true,
 					"optional": true
 				},
-				"hawk": {
-					"version": "3.1.3",
-					"bundled": true,
-					"dev": true,
-					"requires": {
-						"boom": "2.x.x",
-						"cryptiles": "2.x.x",
-						"hoek": "2.x.x",
-						"sntp": "1.x.x"
-					}
-				},
-				"hoek": {
-					"version": "2.16.3",
-					"bundled": true,
-					"dev": true
-				},
-				"http-signature": {
-					"version": "1.1.1",
+				"iconv-lite": {
+					"version": "0.4.21",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
 					"requires": {
-						"assert-plus": "^0.2.0",
-						"jsprim": "^1.2.2",
-						"sshpk": "^1.7.0"
+						"safer-buffer": "^2.1.0"
+					}
+				},
+				"ignore-walk": {
+					"version": "3.0.1",
+					"bundled": true,
+					"dev": true,
+					"optional": true,
+					"requires": {
+						"minimatch": "^3.0.4"
 					}
 				},
 				"inflight": {
 					"version": "1.0.6",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"once": "^1.3.0",
 						"wrappy": "1"
@@ -4115,7 +3974,7 @@
 					"dev": true
 				},
 				"ini": {
-					"version": "1.3.4",
+					"version": "1.3.5",
 					"bundled": true,
 					"dev": true,
 					"optional": true
@@ -4128,98 +3987,12 @@
 						"number-is-nan": "^1.0.0"
 					}
 				},
-				"is-typedarray": {
-					"version": "1.0.0",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
 				"isarray": {
 					"version": "1.0.0",
 					"bundled": true,
-					"dev": true
-				},
-				"isstream": {
-					"version": "0.1.2",
-					"bundled": true,
 					"dev": true,
 					"optional": true
 				},
-				"jodid25519": {
-					"version": "1.0.2",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"jsbn": "~0.1.0"
-					}
-				},
-				"jsbn": {
-					"version": "0.1.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"json-schema": {
-					"version": "0.2.3",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"json-stable-stringify": {
-					"version": "1.0.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"jsonify": "~0.0.0"
-					}
-				},
-				"json-stringify-safe": {
-					"version": "5.0.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"jsonify": {
-					"version": "0.0.0",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"jsprim": {
-					"version": "1.4.0",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"assert-plus": "1.0.0",
-						"extsprintf": "1.0.2",
-						"json-schema": "0.2.3",
-						"verror": "1.3.6"
-					},
-					"dependencies": {
-						"assert-plus": {
-							"version": "1.0.0",
-							"bundled": true,
-							"dev": true,
-							"optional": true
-						}
-					}
-				},
-				"mime-db": {
-					"version": "1.27.0",
-					"bundled": true,
-					"dev": true
-				},
-				"mime-types": {
-					"version": "2.1.15",
-					"bundled": true,
-					"dev": true,
-					"requires": {
-						"mime-db": "~1.27.0"
-					}
-				},
 				"minimatch": {
 					"version": "3.0.4",
 					"bundled": true,
@@ -4233,6 +4006,24 @@
 					"bundled": true,
 					"dev": true
 				},
+				"minipass": {
+					"version": "2.2.4",
+					"bundled": true,
+					"dev": true,
+					"requires": {
+						"safe-buffer": "^5.1.1",
+						"yallist": "^3.0.0"
+					}
+				},
+				"minizlib": {
+					"version": "1.1.0",
+					"bundled": true,
+					"dev": true,
+					"optional": true,
+					"requires": {
+						"minipass": "^2.2.1"
+					}
+				},
 				"mkdirp": {
 					"version": "0.5.1",
 					"bundled": true,
@@ -4247,23 +4038,40 @@
 					"dev": true,
 					"optional": true
 				},
+				"nan": {
+					"version": "2.10.0",
+					"resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
+					"integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA==",
+					"dev": true,
+					"optional": true
+				},
+				"needle": {
+					"version": "2.2.0",
+					"bundled": true,
+					"dev": true,
+					"optional": true,
+					"requires": {
+						"debug": "^2.1.2",
+						"iconv-lite": "^0.4.4",
+						"sax": "^1.2.4"
+					}
+				},
 				"node-pre-gyp": {
-					"version": "0.6.39",
+					"version": "0.10.0",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
 					"requires": {
 						"detect-libc": "^1.0.2",
-						"hawk": "3.1.3",
 						"mkdirp": "^0.5.1",
+						"needle": "^2.2.0",
 						"nopt": "^4.0.1",
+						"npm-packlist": "^1.1.6",
 						"npmlog": "^4.0.2",
 						"rc": "^1.1.7",
-						"request": "2.81.0",
 						"rimraf": "^2.6.1",
 						"semver": "^5.3.0",
-						"tar": "^2.2.1",
-						"tar-pack": "^3.4.0"
+						"tar": "^4"
 					}
 				},
 				"nopt": {
@@ -4276,8 +4084,24 @@
 						"osenv": "^0.1.4"
 					}
 				},
+				"npm-bundled": {
+					"version": "1.0.3",
+					"bundled": true,
+					"dev": true,
+					"optional": true
+				},
+				"npm-packlist": {
+					"version": "1.1.10",
+					"bundled": true,
+					"dev": true,
+					"optional": true,
+					"requires": {
+						"ignore-walk": "^3.0.1",
+						"npm-bundled": "^1.0.1"
+					}
+				},
 				"npmlog": {
-					"version": "4.1.0",
+					"version": "4.1.2",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
@@ -4293,12 +4117,6 @@
 					"bundled": true,
 					"dev": true
 				},
-				"oauth-sign": {
-					"version": "0.8.2",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
 				"object-assign": {
 					"version": "4.1.1",
 					"bundled": true,
@@ -4326,7 +4144,7 @@
 					"optional": true
 				},
 				"osenv": {
-					"version": "0.1.4",
+					"version": "0.1.5",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
@@ -4338,38 +4156,22 @@
 				"path-is-absolute": {
 					"version": "1.0.1",
 					"bundled": true,
-					"dev": true
-				},
-				"performance-now": {
-					"version": "0.2.0",
-					"bundled": true,
 					"dev": true,
 					"optional": true
 				},
 				"process-nextick-args": {
-					"version": "1.0.7",
-					"bundled": true,
-					"dev": true
-				},
-				"punycode": {
-					"version": "1.4.1",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
-				"qs": {
-					"version": "6.4.0",
+					"version": "2.0.0",
 					"bundled": true,
 					"dev": true,
 					"optional": true
 				},
 				"rc": {
-					"version": "1.2.1",
+					"version": "1.2.7",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
 					"requires": {
-						"deep-extend": "~0.4.0",
+						"deep-extend": "^0.5.1",
 						"ini": "~1.3.0",
 						"minimist": "^1.2.0",
 						"strip-json-comments": "~2.0.1"
@@ -4384,64 +4186,48 @@
 					}
 				},
 				"readable-stream": {
-					"version": "2.2.9",
-					"bundled": true,
-					"dev": true,
-					"requires": {
-						"buffer-shims": "~1.0.0",
-						"core-util-is": "~1.0.0",
-						"inherits": "~2.0.1",
-						"isarray": "~1.0.0",
-						"process-nextick-args": "~1.0.6",
-						"string_decoder": "~1.0.0",
-						"util-deprecate": "~1.0.1"
-					}
-				},
-				"request": {
-					"version": "2.81.0",
+					"version": "2.3.6",
 					"bundled": true,
 					"dev": true,
 					"optional": true,
 					"requires": {
-						"aws-sign2": "~0.6.0",
-						"aws4": "^1.2.1",
-						"caseless": "~0.12.0",
-						"combined-stream": "~1.0.5",
-						"extend": "~3.0.0",
-						"forever-agent": "~0.6.1",
-						"form-data": "~2.1.1",
-						"har-validator": "~4.2.1",
-						"hawk": "~3.1.3",
-						"http-signature": "~1.1.0",
-						"is-typedarray": "~1.0.0",
-						"isstream": "~0.1.2",
-						"json-stringify-safe": "~5.0.1",
-						"mime-types": "~2.1.7",
-						"oauth-sign": "~0.8.1",
-						"performance-now": "^0.2.0",
-						"qs": "~6.4.0",
-						"safe-buffer": "^5.0.1",
-						"stringstream": "~0.0.4",
-						"tough-cookie": "~2.3.0",
-						"tunnel-agent": "^0.6.0",
-						"uuid": "^3.0.0"
+						"core-util-is": "~1.0.0",
+						"inherits": "~2.0.3",
+						"isarray": "~1.0.0",
+						"process-nextick-args": "~2.0.0",
+						"safe-buffer": "~5.1.1",
+						"string_decoder": "~1.1.1",
+						"util-deprecate": "~1.0.1"
 					}
 				},
 				"rimraf": {
-					"version": "2.6.1",
+					"version": "2.6.2",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"glob": "^7.0.5"
 					}
 				},
 				"safe-buffer": {
-					"version": "5.0.1",
+					"version": "5.1.1",
 					"bundled": true,
 					"dev": true
 				},
+				"safer-buffer": {
+					"version": "2.1.2",
+					"bundled": true,
+					"dev": true,
+					"optional": true
+				},
+				"sax": {
+					"version": "1.2.4",
+					"bundled": true,
+					"dev": true,
+					"optional": true
+				},
 				"semver": {
-					"version": "5.3.0",
+					"version": "5.5.0",
 					"bundled": true,
 					"dev": true,
 					"optional": true
@@ -4458,39 +4244,6 @@
 					"dev": true,
 					"optional": true
 				},
-				"sntp": {
-					"version": "1.0.9",
-					"bundled": true,
-					"dev": true,
-					"requires": {
-						"hoek": "2.x.x"
-					}
-				},
-				"sshpk": {
-					"version": "1.13.0",
-					"bundled": true,
-					"dev": true,
-					"optional": true,
-					"requires": {
-						"asn1": "~0.2.3",
-						"assert-plus": "^1.0.0",
-						"bcrypt-pbkdf": "^1.0.0",
-						"dashdash": "^1.12.0",
-						"ecc-jsbn": "~0.1.1",
-						"getpass": "^0.1.1",
-						"jodid25519": "^1.0.0",
-						"jsbn": "~0.1.0",
-						"tweetnacl": "~0.14.0"
-					},
-					"dependencies": {
-						"assert-plus": {
-							"version": "1.0.0",
-							"bundled": true,
-							"dev": true,
-							"optional": true
-						}
-					}
-				},
 				"string-width": {
 					"version": "1.0.2",
 					"bundled": true,
@@ -4502,19 +4255,14 @@
 					}
 				},
 				"string_decoder": {
-					"version": "1.0.1",
+					"version": "1.1.1",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
-						"safe-buffer": "^5.0.1"
+						"safe-buffer": "~5.1.0"
 					}
 				},
-				"stringstream": {
-					"version": "0.0.5",
-					"bundled": true,
-					"dev": true,
-					"optional": true
-				},
 				"strip-ansi": {
 					"version": "3.0.1",
 					"bundled": true,
@@ -4530,81 +4278,26 @@
 					"optional": true
 				},
 				"tar": {
-					"version": "2.2.1",
-					"bundled": true,
-					"dev": true,
-					"requires": {
-						"block-stream": "*",
-						"fstream": "^1.0.2",
-						"inherits": "2"
-					}
-				},
-				"tar-pack": {
-					"version": "3.4.0",
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 					"resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.2.tgz",
 					"integrity": "sha1-CgAsyFcHGSp+eUbO7cERVfYOxzY=",
 					"dev": true,
+					"optional": true,
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 						"depd": "1.1.1",
 						"inherits": "2.0.3",
@@ -9031,13 +8744,15 @@
 					"version": "0.4.19",
 					"resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
 					"integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==",
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"setprototypeof": {
 					"version": "1.0.3",
 					"resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.0.3.tgz",
 					"integrity": "sha1-ZlZ+NwQ+608E2RvWWMDL77VbjgQ=",
-					"dev": true
+					"dev": true,
+					"optional": true
 				}
 			}
 		},
@@ -9106,15 +8821,15 @@
 			"optional": true
 		},
 		"reduce-flatten": {
-			"version": "1.0.1",
-			"resolved": "https://registry.npmjs.org/reduce-flatten/-/reduce-flatten-1.0.1.tgz",
-			"integrity": "sha1-JYx479FT3fk8tWEjf2EYTzaW4yc=",
+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/reduce-flatten/-/reduce-flatten-2.0.0.tgz",
+			"integrity": "sha512-EJ4UNY/U1t2P/2k6oqotuX2Cc3T6nxJwsM0N0asT7dhrtH1ltUxDn4NalSYmPE2rCkVpcf/X6R0wDwcFpzhd4w==",
 			"dev": true
 		},
 		"regenerate": {
-			"version": "1.3.3",
-			"resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.3.3.tgz",
-			"integrity": "sha512-jVpo1GadrDAK59t/0jRx5VxYWQEDkkEKi6+HjE3joFVLfDOh9Xrdh0dF1eSq+BI/SwvTQ44gSscJ8N5zYL61sg==",
+			"version": "1.4.0",
+			"resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.4.0.tgz",
+			"integrity": "sha512-1G6jJVDWrt0rK99kBjvEtziZNCICAuvIPkSiUFIQxVP06RCVpq3dmDo2oi6ABpYaDYaTRr67BEhL8r1wgEZZKg==",
 			"dev": true
 		},
 		"regenerator-runtime": {
@@ -10338,13 +10053,13 @@
 			}
 		},
 		"table-layout": {
-			"version": "0.4.3",
-			"resolved": "https://registry.npmjs.org/table-layout/-/table-layout-0.4.3.tgz",
-			"integrity": "sha512-MIhflPM38ejKrFwWwC3P9x3eHvMo5G5AmNo29Qtz2HpBl5KD2GCcmOErjgNtUQLv/qaqVDagfJY3rJLPDvEgLg==",
+			"version": "0.4.4",
+			"resolved": "https://registry.npmjs.org/table-layout/-/table-layout-0.4.4.tgz",
+			"integrity": "sha512-uNaR3SRMJwfdp9OUr36eyEi6LLsbcTqTO/hfTsNviKsNeyMBPICJCC7QXRF3+07bAP6FRwA8rczJPBqXDc0CkQ==",
 			"dev": true,
 			"requires": {
 				"array-back": "^2.0.0",
-				"deep-extend": "~0.5.0",
+				"deep-extend": "~0.6.0",
 				"lodash.padend": "^4.6.1",
 				"typical": "^2.6.1",
 				"wordwrapjs": "^3.0.0"
@@ -12428,6 +12143,14 @@
 			"requires": {
 				"reduce-flatten": "^1.0.1",
 				"typical": "^2.6.1"
+			},
+			"dependencies": {
+				"reduce-flatten": {
+					"version": "1.0.1",
+					"resolved": "https://registry.npmjs.org/reduce-flatten/-/reduce-flatten-1.0.1.tgz",
+					"integrity": "sha1-JYx479FT3fk8tWEjf2EYTzaW4yc=",
+					"dev": true
+				}
 			}
 		},
 		"worker-farm": {
diff --git a/package.json b/package.json
index 8d9fb33..c6afeda 100644
--- a/package.json
+++ b/package.json
@@ -41,14 +41,14 @@
 		"@types/three": "^0.91.11",
 		"babel-cli": "^6.26.0",
 		"babel-plugin-external-helpers": "^6.22.0",
-		"babel-preset-env": "^1.6.1",
+		"babel-preset-env": "^1.7.0",
 		"chai": "^4.1.2",
 		"eslint": "^4.19.1",
 		"karma": "^2.0.4",
 		"karma-chrome-launcher": "^2.2.0",
 		"karma-mocha": "^1.3.0",
 		"karma-webpack": "^3.0.0",
-		"local-web-server": "^2.5.2",
+		"local-web-server": "^2.5.4",
 		"mocha": "^5.2.0",
 		"npm-run-all": "^4.1.2",
 		"puppeteer": "^1.5.0",