Update Players.hpp

Fixed classnames for capitalization.  Also INS_Worker2 is not a valid base class.  Worker1 is, fixed to that.
#640
#660
Update config.cpp

Fixed classnames for capitalization.  Also INS_Worker2 is not a valid base class.  Worker1 is, fixed to that.
#640
#660
Update variables.sqf

Fixed classnames for capitalization.  Also INS_Worker2 is not a valid base class.  Worker1 is, fixed to that.
#640
#660
Merge pull request #669 from dayz10k/master

New Skins fixes