Move Logger and Core natives to Logic
Add missing files
Fix returning strings from functions with variadic arguments.
Remove unnecessary changes.
Convert missed files in logic to use logger from logic.
Fix link errors.
Update FoF gamedata.
Merge pull request #132 from alliedmodders/fix-variadic-args

Fix returning strings from functions with variadic arguments.
Fix style issues in sctracker.c.
Deleting CONTRIBUTOR.md (until an up-to-date link is available).
Fix typedefs not fixing string sizes (bug 6220).
Merge pull request #135 from alliedmodders/typedef-fix

Fix typedefs not fixing string sizes (bug 6220).
Merge pull request #133 from alliedmodders/logger-logic

Move Logger and core natives from core to logic (r=dvander).
Update NMRIH gamedata.
Temporarily revert to previous SteamID format.
Merge remote-tracking branch 'upstream/master'
Merge branch 'steam3-steamids'