Added some missing includes to sourcemod.inc --HG-- extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40919
- added ShowActivity() native - added lang.inc to sourcemod.inc --HG-- extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40916