Update gems but stay on rails 3.1 for now

Gemfile

@@ -1,29 +1,23 @@
 source 'http://rubygems.org'
-gem 'rails','>=3.1.0'
+gem 'rails', '>=3.1.0', '<3.2.0'
-gem 'yajl-ruby', :require => 'yajl'
 
 gem 'bson_ext'
 gem 'carrierwave'
 gem 'carrierwave-mongoid', :require => 'carrierwave/mongoid'
 gem 'ckeditor'
 gem 'devise'
+gem 'exception_notification' # Send error trace
+gem 'execjs'
+gem 'jquery-rails'
 gem 'mini_magick'
+gem 'mongoid'
+gem 'radius'
+gem 'rake'
+gem 'ruby-debug19'
 gem 'rubyzip'
 gem 'sinatra'
-gem 'execjs'
-gem 'mongoid'
-
-gem 'rake','0.8.7'
-gem 'jquery-rails'
-
 gem 'sprockets'
-
+# gem 'therubyracer' # For linux
-gem 'radius'
-
-gem 'exception_notification'
-
-# For linux
-# gem 'therubyracer'
 
 # Gems used only for assets and not required
 # in production environments by default.
@@ -33,9 +27,6 @@ group :assets do
   gem 'uglifier'
 end
 
-# To use debugger (ruby-debug for Ruby 1.8.7+, ruby-debug19 for Ruby 1.9.2+)
-# gem 'ruby-debug'
- gem 'ruby-debug19'
 
 group :test, :development do
   gem 'spork'
@@ -44,7 +35,7 @@ group :test, :development do
   gem "rspec-rails", "~> 2.0"
   gem "factory_girl_rails"
   gem "shoulda-matchers"
-  gem "rcov"
+  gem "simplecov"
   gem "delorean"
   gem "watchr"
 	gem "spork"

Gemfile.lock

@@ -52,12 +52,12 @@ GEM
     coffee-script (2.2.0)
       coffee-script-source
       execjs
-    coffee-script-source (1.1.3)
+    coffee-script-source (1.2.0)
-    columnize (0.3.5)
+    columnize (0.3.6)
-    database_cleaner (0.7.0)
+    database_cleaner (0.7.1)
-    delorean (1.1.1)
+    delorean (1.2.0)
       chronic
-    devise (1.5.2)
+    devise (1.5.3)
       bcrypt-ruby (~> 3.0)
       orm_adapter (~> 0.0.3)
       warden (~> 1.1)
@@ -65,19 +65,19 @@ GEM
     erubis (2.7.0)
     exception_notification (2.5.2)
       actionmailer (>= 3.0.4)
-    execjs (1.2.9)
+    execjs (1.3.0)
       multi_json (~> 1.0)
-    factory_girl (2.3.2)
+    factory_girl (2.5.0)
       activesupport
-    factory_girl_rails (1.4.0)
+    factory_girl_rails (1.6.0)
-      factory_girl (~> 2.3.0)
+      factory_girl (~> 2.5.0)
       railties (>= 3.0.0)
     hike (1.2.1)
     i18n (0.6.0)
     jquery-rails (1.0.19)
       railties (~> 3.0)
       thor (~> 0.14)
-    json (1.6.3)
+    json (1.6.5)
     linecache19 (0.5.12)
       ruby_core_source (>= 0.1.4)
     mail (2.3.0)
@@ -85,23 +85,23 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.17.2)
-    mini_magick (3.3)
+    mini_magick (3.4)
-      subexec (~> 0.1.0)
+      subexec (~> 0.2.1)
     mongo (1.5.2)
       bson (= 1.5.2)
-    mongoid (2.4.0)
+    mongoid (2.4.2)
       activemodel (~> 3.1)
       mongo (~> 1.3)
       tzinfo (~> 0.3.22)
     multi_json (1.0.4)
-    orm_adapter (0.0.5)
+    orm_adapter (0.0.6)
     polyglot (0.3.3)
     rack (1.3.6)
     rack-cache (1.1)
       rack (>= 0.4)
     rack-mount (0.8.3)
       rack (>= 1.0.0)
-    rack-protection (1.1.4)
+    rack-protection (1.2.0)
       rack
     rack-ssl (1.3.2)
       rack
@@ -123,23 +123,22 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.6)
-    rake (0.8.7)
+    rake (0.9.2.2)
-    rcov (0.9.11)
+    rdoc (3.12)
-    rdoc (3.11)
       json (~> 1.4)
-    rspec (2.7.0)
+    rspec (2.8.0)
-      rspec-core (~> 2.7.0)
+      rspec-core (~> 2.8.0)
-      rspec-expectations (~> 2.7.0)
+      rspec-expectations (~> 2.8.0)
-      rspec-mocks (~> 2.7.0)
+      rspec-mocks (~> 2.8.0)
-    rspec-core (2.7.1)
+    rspec-core (2.8.0)
-    rspec-expectations (2.7.0)
+    rspec-expectations (2.8.0)
       diff-lcs (~> 1.1.2)
-    rspec-mocks (2.7.0)
+    rspec-mocks (2.8.0)
-    rspec-rails (2.7.0)
+    rspec-rails (2.8.1)
-      actionpack (~> 3.0)
+      actionpack (>= 3.0)
-      activesupport (~> 3.0)
+      activesupport (>= 3.0)
-      railties (~> 3.0)
+      railties (>= 3.0)
-      rspec (~> 2.7.0)
+      rspec (~> 2.8.0)
     ruby-debug-base19 (0.11.25)
       columnize (>= 0.3.1)
       linecache19 (>= 0.5.11)
@@ -151,37 +150,49 @@ GEM
     ruby_core_source (0.1.5)
       archive-tar-minitar (>= 0.5.2)
     rubyzip (0.9.5)
-    sass (3.1.11)
+    sass (3.1.12)
     sass-rails (3.1.5)
       actionpack (~> 3.1.0)
       railties (~> 3.1.0)
       sass (~> 3.1.10)
       tilt (~> 1.3.2)
     shoulda-matchers (1.0.0)
-    sinatra (1.3.1)
+    simplecov (0.5.4)
-      rack (~> 1.3, >= 1.3.4)
+      multi_json (~> 1.0.3)
-      rack-protection (~> 1.1, >= 1.1.2)
+      simplecov-html (~> 0.5.3)
+    simplecov-html (0.5.3)
+    sinatra (1.3.2)
+      rack (~> 1.3, >= 1.3.6)
+      rack-protection (~> 1.2)
       tilt (~> 1.3, >= 1.3.3)
-    spork (0.8.5)
+    spork (0.9.0)
+    spork (0.9.0-x86-mingw32)
+      win32-process
     sprockets (2.0.3)
       hike (~> 1.2)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    subexec (0.1.0)
+    subexec (0.2.1)
     thor (0.14.6)
     tilt (1.3.3)
     treetop (1.4.10)
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.31)
-    uglifier (1.1.0)
+    uglifier (1.2.2)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)
     warden (1.1.0)
       rack (>= 1.0)
     watchr (0.7)
-    yajl-ruby (1.1.0)
+    win32-api (1.4.8-x86-mingw32)
-    yajl-ruby (1.1.0-x86-mingw32)
+    win32-process (0.6.5)
+      windows-pr (>= 1.1.2)
+    windows-api (0.4.0)
+      win32-api (>= 1.4.5)
+    windows-pr (1.2.1)
+      win32-api (>= 1.4.5)
+      windows-api (>= 0.3.0)
 
 PLATFORMS
   ruby
@@ -203,18 +214,17 @@ DEPENDENCIES
   mini_magick
   mongoid
   radius
-  rails (>= 3.1.0)
+  rails (>= 3.1.0, < 3.2.0)
-  rake (= 0.8.7)
+  rake
-  rcov
   rspec (~> 2.0)
   rspec-rails (~> 2.0)
   ruby-debug19
   rubyzip
   sass-rails
   shoulda-matchers
+  simplecov
   sinatra
   spork
   sprockets
   uglifier
   watchr
-  yajl-ruby