Add profiling to main16.py using PROFILE=YES environment variable.
Add OFF audittype to audit202.py.
Add OFF audittype (default) in audit202.py.
Correct audit doc counting in audit203.py.
New extract instructions in q2-extractinstructions-02.txt, including syntho vars.
Fix reporting of audit status in main16.py.
Merge branch 'master' of https://github.com/MIT-Informatics/PreservationSimulation

Conflicts:
	shelf/audit2.py
	shelf/audit203.py

RBL: resolve conflict, I hope, by removing the four comment lines in the edit history.  I will replace them later.