fixes #353 minify js file, move jquery and jquery-ui to CDN

Gemfile.lock

@@ -118,7 +118,7 @@ GEM
     diff-lcs (1.2.5)
     docile (1.1.3)
     erubis (2.7.0)
-    execjs (2.0.2)
+    execjs (2.2.1)
     factory_girl (4.4.0)
       activesupport (>= 3.0.0)
     factory_girl_rails (4.4.1)
@@ -167,8 +167,12 @@ GEM
     jquery-rails (3.1.0)
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
+    jquery-rails-cdn (1.0.3)
+      jquery-rails
     jquery-ui-rails (4.2.1)
       railties (>= 3.2.16)
+    jquery-ui-rails-cdn (0.1.5)
+      jquery-ui-rails (~> 4.1)
     json (1.8.1)
     jwt (1.0.0)
     launchy (2.4.2)
@@ -377,7 +381,7 @@ GEM
       coffee-rails
     tzinfo (1.2.1)
       thread_safe (~> 0.1)
-    uglifier (2.5.0)
+    uglifier (2.5.3)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     user_agent_parser (2.1.5)
@@ -423,7 +427,9 @@ DEPENDENCIES
   hoptoad_notifier (~> 2.3)
   jquery-fileupload-rails
   jquery-rails
+  jquery-rails-cdn
   jquery-ui-rails
+  jquery-ui-rails-cdn
   letter_opener
   mina
   mysql2
@@ -451,5 +457,5 @@ DEPENDENCIES
   timecop
   transitions
   turbolinks
-  uglifier (>= 1.3.0)
+  uglifier
   whenever