Celts Abbey Bug Fix

The Abbey does not yield any faith like a normal Temple does.  Added +2
faith to the Abbey.  I noticed this error while using this civilization
today.
Merge pull request #4 from EricB1/master

Celts Abbey Bug Fix
Removed obsolete files
Merge branch 'master' of https://github.com/Thalassicus/cepbasic
Merge Prep2