Merge pull request #609 from berryma4/3.3.x

o.c.a.reader.appliance: possible concurrency issue
#433 PostGres Archive Stored Procedures for Optimized Requests
o.c.scan.*: 'Abort' no longer indicated as error; PV for state
o.c.scan: Increment version and update changelog
Merge pull request #659 from ControlSystemStudio/bug656

o.c.scan.*: 'Abort' no longer indicated as error; PV for state
Merge pull request #655 from css-iter/master

#433 PostGres Archive Stored Procedures for Optimized Requests
Merge remote-tracking branch 'origin/master' into sns4