Don't hardcode paths to tier0/vstdlib in ICommandLine lookup (nobug).

--HG--
extra : rebase_source : 43d9d34a73ad9f89806507a521aed3f30d351586
Support all file search paths when finding mapcycle file (bug 5839, r=asherkin).

--HG--
extra : rebase_source : 997dedcbac4a9249111c7424723f5b386baee77d
Add support for Insurgency mapcycle format (bug 5966, r=asherkin).

--HG--
extra : rebase_source : 3ae48e176177b1816351cc0cdd5c8dd35e630ea3