[SP] CTaskManager::Get optimization for TK_VECTOR
[JK2SP] CTaskManager::Get optimization for TK_VECTOR
[MP] CTaskManager::Get optimization for TK_VECTOR
[JK2SP] Fixed potentional OOB access in CG_ServerCommand
Merge pull request #549 from BSzili/master

Small ICARUS optimization, fixed potentional OOB access with the "ct" command in JK2SP.