Fixed bug caused by deleting production name when cleaning up at end of
 a successful chunk built.  Moved production name deletion to abort 
 code.  Refactored chunking_done label to chunking_abort to be more 
 accurate and avoid similar situations.  Passes chunking unit tests 1-19
 NCCs and templates still need fixed.
Merge branch '9.5-unification-bug' of git@github.com:SoarGroup/soar.git into 9.5-unification-bug