ICE-9307 Use a copy of the old DOM when rendering component subtrees to avoid the mutation of the oldDOM.

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@35676 1de00972-ac04-4911-a46b-06793c8d78d9
ICE-9294: Showcase - ace:menu component text-styling issues with some ACE ThemeRoller themes.

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@35680 1de00972-ac04-4911-a46b-06793c8d78d9