Comment out servertools functions.

If I don't comment out this line in core\init.sqf, then EVERYONE on the server will get hints about where their player position in SQM (x,z,y) format.  Uncomment this line to turn it back on:
```
[] execVM "servertools\displayPOSASLxzy.sqf";
```
Remove description.ext branding changes

Since Tonic bothered to state that we should not make changes to author or branding in description.ext, we change that part of description.ext back to vanilla.  Put branding and customization notes in briefing.sqf
Merge pull request #21 from jwo7777777/master

Catchup branch with mundane master fixes