Use the correct mysql2 adapter for Rails versions < 4

Author: laserlemon

.gitignore

@@ -5,3 +5,4 @@ Gemfile.lock
 bin
 coverage
 pkg/*
+gemfiles/**/*.gemfile.lock

gemfiles/mysql2/3-0.gemfile

@@ -8,7 +8,7 @@ group :test do
   end
 
   platforms :ruby, :mswin, :mingw do
-    gem 'mysql2'
+    gem 'activerecord-mysql2-adapter'
   end
 
   gem 'coveralls', :require => false

gemfiles/mysql2/3-1.gemfile

@@ -8,7 +8,7 @@ group :test do
   end
 
   platforms :ruby, :mswin, :mingw do
-    gem 'mysql2'
+    gem 'activerecord-mysql2-adapter'
   end
 
   gem 'coveralls', :require => false

gemfiles/mysql2/3-2.gemfile

@@ -8,7 +8,7 @@ group :test do
   end
 
   platforms :ruby, :mswin, :mingw do
-    gem 'mysql2'
+    gem 'activerecord-mysql2-adapter'
   end
 
   gem 'coveralls', :require => false