fix(package): update ansi-colors to version 4.1.0

Closes #47

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
     },
     "homepage": "https://github.com/TypeScript-Web-Framework/ts-web-framework",
     "dependencies": {
-        "ansi-colors": "^3.0.0",
+        "ansi-colors": "^4.1.0",
         "body-parser": "^1.15.2",
         "cookie-parser": "^1.4.3",
         "cookie-session": "^2.0.0-beta.3",