Update Maze VN translation and text_isEmpty block.

git-svn-id: http://blockly.googlecode.com/svn/trunk@670 c400ca83-b69d-9dd7-9705-49c6b8615e23
Revert to earlier 'blockly_compressed.js' that doesn't have the race condition that breaks all the apps. (Issue 120)

git-svn-id: http://blockly.googlecode.com/svn/trunk@671 c400ca83-b69d-9dd7-9705-49c6b8615e23