Minify-css and remove spectrum css

package.json

@@ -4,7 +4,7 @@
   "description": "Zoff, the shared YouTube based radio services",
   "main": "server/app.js",
   "scripts": {
-    "start": "gulp build && node server/app.js",
+    "start": "npm install --only=dev && npm install && gulp build && node server/app.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "repository": {
@@ -22,7 +22,8 @@
   "devDependencies": {
     "gulp": "~3.9.0",
     "gulp-concat": "^2.6.1",
-    "gulp-uglifyjs": "~0.6.2",
+    "gulp-cssnano": "^2.1.3",
+    "gulp-uglify": "^3.0.1",
     "gulp-util": "~3.0.6"
   },
   "homepage": "https://github.com/zoff-music/zoff#readme",
@@ -39,11 +40,6 @@
     "express-recaptcha": "^3.0.1",
     "express-session": "^1.15.6",
     "express-sessions": "^1.0.6",
-    "farmhash": "^2.1.0",
-    "gulp": "^3.9.1",
-    "gulp-uglify": "^3.0.0",
-    "gulp-uglifyjs": "^0.6.2",
-    "gulp-util": "^3.0.8",
     "helmet": "^3.12.0",
     "jimp": "^0.2.28",
     "mongodb": "^2.2.35",