From MageKing17, Makes the $CD: token for cutscenes.tbl optional. Useful, since a majority of assets no longer require physical CD's.

git-svn-id: svn://svn.icculus.org/fs2open@11092 387891d4-d844-0410-90c0-e4c51a9137d3
use the OBJ_INDEX macro, because that's why we have it

git-svn-id: svn://svn.icculus.org/fs2open@11093 387891d4-d844-0410-90c0-e4c51a9137d3
Between the Ashes HPC request: allow ships to attack others on the same team

git-svn-id: svn://svn.icculus.org/fs2open@11094 387891d4-d844-0410-90c0-e4c51a9137d3
MageKing17's patch for Mantis #3110: Message Brackets not displayed with 'Invisible to Friendlies' flag

git-svn-id: svn://svn.icculus.org/fs2open@11095 387891d4-d844-0410-90c0-e4c51a9137d3
and on the subject of Mantis #3110: fix the multi_sexp_deal_with_ship_flag issue that MageKing17 noticed, and tweak a sexp to be more clear

git-svn-id: svn://svn.icculus.org/fs2open@11096 387891d4-d844-0410-90c0-e4c51a9137d3