Development branch for start on thorough integration of error logging to feed engines, plus:
- more complete integrity checking on engine meta data
- new meta data file for storage of npoints parameter only.

Note: dont use this branch in production yet, make sure you have a good backup.
Additional error checking and logging for PHPTimestore
Further PHPTimestore error logging
Mostly complete logging for feed engines
consistent class:method naming
Allow updating in PHPFINA
Merge branch 'logging'