UPDATED:
ROI PVs with new names

ADDED:
second ROI PVs, feedback labels, Mplot object and radio buttons to
choose which ROI to set.

ADDED:
total counts PV and feedback label
FIXED:
Cleaned up memory leaks
Merge branch 'master' into Issue1014
Merge branch 'master' into Issue1014
CLEANUP:
Removed commented out code and unused methods.
CLEANUP:
Missed one of Mark's old comments
Merge pull request #1051 from acquaman/Issue1014

Looks pretty solid. Let's get this into master. Good work gents.