Added Swahili Maze translation.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/9389043

git-svn-id: http://blockly.googlecode.com/svn/trunk@867 c400ca83-b69d-9dd7-9705-49c6b8615e23
Added _soy/SoyMsgExtractor.jar and updated instructions.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/9390043

git-svn-id: http://blockly.googlecode.com/svn/trunk@868 c400ca83-b69d-9dd7-9705-49c6b8615e23