Mantis #2999 - add docking log entries for support ships

git-svn-id: svn://svn.icculus.org/fs2open@10930 387891d4-d844-0410-90c0-e4c51a9137d3
MageKing17's tweaks, with a couple of my own

git-svn-id: svn://svn.icculus.org/fs2open@10931 387891d4-d844-0410-90c0-e4c51a9137d3