Resolve compilation failure introduced by r10170

git-svn-id: svn://svn.icculus.org/fs2open@10171 387891d4-d844-0410-90c0-e4c51a9137d3
Fix a problem with the mouse where the controls were stuck.

git-svn-id: svn://svn.icculus.org/fs2open@10172 387891d4-d844-0410-90c0-e4c51a9137d3
Closer to working compile with Xcode 5.

git-svn-id: svn://svn.icculus.org/fs2open@10173 387891d4-d844-0410-90c0-e4c51a9137d3
don't Int3() because this can happen when a ship is missing from a mod (i.e. when it turns into the GTF Ulysses)

git-svn-id: svn://svn.icculus.org/fs2open@10174 387891d4-d844-0410-90c0-e4c51a9137d3