Properly implemented the --app parameter.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/23520045

git-svn-id: http://blockly.googlecode.com/svn/trunk@1489 c400ca83-b69d-9dd7-9705-49c6b8615e23
Added complete Arabic (ar), Indonesian (id), and Romanian, thanks
to our friends at code.org and crowdin.
Added Romanian to Code, Graph, and Turtle.
Added Arabic to Code.
Includes some files left out of previous CL.
Changes to *compressed.js should be no-ops.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/24250045

git-svn-id: http://blockly.googlecode.com/svn/trunk@1490 c400ca83-b69d-9dd7-9705-49c6b8615e23