Clean up readonly templates.

git-svn-id: http://blockly.googlecode.com/svn/trunk@1758 c400ca83-b69d-9dd7-9705-49c6b8615e23
Stop iOS from expanding readonly iframes infinitely vertically.

git-svn-id: http://blockly.googlecode.com/svn/trunk@1759 c400ca83-b69d-9dd7-9705-49c6b8615e23
Fix double prompt() bug in iOS.

git-svn-id: http://blockly.googlecode.com/svn/trunk@1760 c400ca83-b69d-9dd7-9705-49c6b8615e23