HTML editing fixes, upgrade to TinyMCE v3.0.6

svncommit

2008-04-15 d9344fc349e8c5765898c90bf5061e56cd21c8a0

program/js/tiny_mce/langs/readme.txt does not exist in tree a5916f5f3f88df8d6336b43dde8cdbb49cb47bdc