Added RemoveListItem() for toolbar.

git-svn-id: http://maxmods.googlecode.com/svn/trunk@1620 b77917fb-863c-0410-9a43-030a88dac9d3
Implemented AddText() method.

git-svn-id: http://maxmods.googlecode.com/svn/trunk@1621 b77917fb-863c-0410-9a43-030a88dac9d3