update coverage and use coveralls.io

Gemfile.lock

@@ -102,6 +102,12 @@ GEM
       execjs
     coffee-script-source (1.6.3)
     commonjs (0.2.7)
+    coveralls (0.7.0)
+      multi_json (~> 1.3)
+      rest-client
+      simplecov (>= 0.7)
+      term-ansicolor
+      thor
     daemons (1.1.9)
     database_cleaner (1.2.0)
     debug_inspector (0.0.2)
@@ -248,6 +254,8 @@ GEM
       redis-namespace (~> 1.2)
       sinatra (>= 0.9.2)
       vegas (~> 0.1.2)
+    rest-client (1.6.7)
+      mime-types (>= 1.16)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
@@ -306,6 +314,8 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.8)
+    term-ansicolor (1.2.2)
+      tins (~> 0.8)
     therubyracer (0.12.0)
       libv8 (~> 3.16.14.0)
       ref
@@ -315,6 +325,7 @@ GEM
       rack (>= 1.0.0)
     thor (0.18.1)
     tilt (1.4.1)
+    tins (0.13.1)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
@@ -357,6 +368,7 @@ DEPENDENCIES
   client_side_validations
   client_side_validations-simple_form
   coffee-rails (~> 3.2.1)
+  coveralls
   daemons
   database_cleaner
   exception_notification