adding loader that shows by default and is removed on DOM ready
Unalias ar and es-MX to en-US as they are ready now
Merge pull request #68 from pascalchevrel/bug-860678_unalias_Arabic_and_Mexican_Spanish

Unalias ar and es-MX to en-US as they are ready now
Merge pull request #67 from ossreleasefeed/bug860477-add-loader-for-iframe

adding loader that shows by default and is removed on DOM ready