move dependencies to devDependencies

From the looks of it, I don't think these dependencies are actually needed if one just wants to use this package, so I've moved them to `devDependencies`

Author: dVelopment

package.json

@@ -3,15 +3,15 @@
   "version": "0.1.26",
   "description": "An angular directive for seiyria-bootstrap-slider",
   "main": "slider.js",
-  "dependencies": {
+  "devDependencies": {
     "http-server": "^0.8.5",
     "jasmine-core": "^2.3.4",
     "karma": "^0.13.15",
     "karma-chrome-launcher": "^0.2.1",
     "karma-jasmine": "^0.3.6",
     "protractor": "^3.0.0"
   },
-  "devDependencies": {},
+  "dependencies": {},
   "scripts": {
     "start": "http-server -a localhost -p 31337 -c-1",
     "test": "npm run protractor",