Add rimraf and colors as dev-dependencies

Author: rosen-vladimirov

package.json

@@ -33,13 +33,15 @@
     "@types/request": "0.0.42",
     "chai": "3.5.0",
     "chai-as-promised": "6.0.0",
+    "colors": "1.2.4",
     "file": "0.2.2",
     "grunt": "1.0.1",
     "grunt-contrib-clean": "1.0.0",
     "grunt-contrib-watch": "1.0.0",
     "grunt-shell": "2.1.0",
     "grunt-ts": "6.0.0-beta.10",
     "grunt-tslint": "4.0.0",
+    "rimraf": "2.6.2",
     "spec-xunit-file": "0.0.1-3",
     "tslint": "4.3.1",
     "typescript": "2.1.4"
@@ -49,4 +51,4 @@
   "engines": {
     "node": ">=6.0.0 <9.0.0"
   }
-}
+}