bump mysql

Gemfile

@@ -222,7 +222,7 @@ gem 'reform', '~> 1.2.6', require: false
 
 platforms :mri, :mingw, :x64_mingw do
   group :mysql2 do
-    gem 'mysql2', '~> 0.4'
+    gem 'mysql2', '~> 0.4.4'
   end
 
   group :postgres do

Gemfile.lock

@@ -325,7 +325,7 @@ GEM
     multi_xml (0.5.5)
     mustermann19 (0.4.4)
       enumerable-lazy
-    mysql2 (0.4.3)
+    mysql2 (0.4.4)
     net-ldap (0.14.0)
     newrelic_rpm (3.15.0.314)
     nio4r (1.2.1)
@@ -609,7 +609,7 @@ DEPENDENCIES
   letter_opener
   livingstyleguide (~> 2.0.0.pre.1)
   multi_json (~> 1.11.0)
-  mysql2 (~> 0.4)
+  mysql2 (~> 0.4.4)
   net-ldap (~> 0.14.0)
   newrelic_rpm
   nokogiri (~> 1.6.8)