[MOD]Refactor Plugin TowTruck to Plugin Together, from the new name by MozillaLabs: TogetherJS. See http://dev.tiki.org/item4780 . Thanks marclaporte

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@47835 b456876b-0849-0410-b77d-98878d47e9d5