Localisation updates from http://translatewiki.net.

git-svn-id: http://blockly.googlecode.com/svn/trunk@1462 c400ca83-b69d-9dd7-9705-49c6b8615e23
Adding some generated files.

R=spertus@google.com

Review URL: https://codereview.appspot.com/19250046

git-svn-id: http://blockly.googlecode.com/svn/trunk@1464 c400ca83-b69d-9dd7-9705-49c6b8615e23
Incorporated latest translatewiki changes.
Added language packs for Spanish, French, zh-hans, and zh-hant.
Added to code app: Spanish, French, zh-hans and zh-hant.
Added to graph, plane, and turtle apps: Spanish, French, and zh-hans.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/19900043

git-svn-id: http://blockly.googlecode.com/svn/trunk@1465 c400ca83-b69d-9dd7-9705-49c6b8615e23