[ADD] The PastLink button is displayed on the non-wysiwyg editor toolbar by default when wikiLingo and FutureLink-Protocol are turned on, otherwise it's not available.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/experimental@50494 b456876b-0849-0410-b77d-98878d47e9d5