Fixed Linux binary.

[Ryan C. Gordon]

I'm going to spare the comparisons between the "OMG WE WANT IT NOW!!!!" 
and the "OMG THIS LEAKED VERSION CRASHES ALL THE TIME" emails.   :)

Here's a fixed 1.2 patch...we'll call it 1.2a. This handles the crash on 
mapchange where you get the BG_IndexForString error message, and some 
other memory corruption fixes that Valgrind exposed. It's basically the 
04102006 binary with an updated cod2_lnxded, so pull the old one off 
your mirrors right now and replace it with this.

This build isn't official, but since you can't put the toothpaste back 
in the tube, please feel free to mirror it. Comments go here, bugs go to 
https://bugzilla.icculus.org/

   http://treefort.icculus.org/cod/cod2-lnxded-1.2a-04132006.tar.bz2

   md5sum:
    24769fc0b08c997ed84d61a8685b692c  cod2-lnxded-1.2a-04132006.tar.bz2

--ryan.