Flip anchor points so the colour pickers don't go offscreen.

git-svn-id: http://blockly.googlecode.com/svn/trunk@1662 c400ca83-b69d-9dd7-9705-49c6b8615e23
Support disabled blocks in Block Factory

git-svn-id: http://blockly.googlecode.com/svn/trunk@1663 c400ca83-b69d-9dd7-9705-49c6b8615e23