ICE-9303 - Prevent Prototype from overwriting native implementations.

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@36971 1de00972-ac04-4911-a46b-06793c8d78d9
ICE-9428 - Reverting to adding / removing columns. Altered column checkbox layout.

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@36973 1de00972-ac04-4911-a46b-06793c8d78d9