Moved more common messages into apps directory.  Put in template.soy format.
Note that en.json and qqq.json are generated files.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/9607043

git-svn-id: http://blockly.googlecode.com/svn/trunk@971 c400ca83-b69d-9dd7-9705-49c6b8615e23
Add movable="false" and deletable="false" to XML format.  Remove Block.editable since levels of editability is now more nuanced than a boolean.
Review URL: https://codereview.appspot.com/9735043

git-svn-id: http://blockly.googlecode.com/svn/trunk@972 c400ca83-b69d-9dd7-9705-49c6b8615e23
Back-propagating changes to qqq.json (made at translatewiki.net) into template.soy.
Made descriptions into sentences.
Changed xliff_to_json.py to replace "{lb}" and "{rb}" with "{" and "}", respectively, because Soy has trouble with double braces.  I also made the spacing more similar to what is used at translatewiki.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/9655044

git-svn-id: http://blockly.googlecode.com/svn/trunk@973 c400ca83-b69d-9dd7-9705-49c6b8615e23