Minor followup to r11150.

The regular parsing code not using the same broken logic as parse_comments() is not the same thing as it "ignoring" too high versions, and searching for repetitions of the same token would result in just finding the first one over and over again (the likelihood of this actually mattering to anyone is minuscule, but I needed something to test commit access, and this code has been tested).

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@11167 387891d4-d844-0410-90c0-e4c51a9137d3
With help from MageKing17: Fix for Mantis 3123: Virtual variables and indexers that return nil break the scripting system

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@11168 387891d4-d844-0410-90c0-e4c51a9137d3
Redo Coverity 1215458 Uninitialized pointer field

Includes more robust checks of cmdline_parm data

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@11169 387891d4-d844-0410-90c0-e4c51a9137d3
Add aiprofiles flag for strict tagged-only
Merge branch 'master' into tagged-issue