OPAL-2297: Improvements for summary cancel/refresh/full
Revert change to GWTApp
Removing commented out code
Removing GWT.log
Merge pull request #461 from emorency/OPAL-2290-Variable-edit-validation

Opal 2290 variable edit validation
Adding comments to add groups suggest list box
Do not use BooleanUtils
Fixing Boolean to boolean
Check NPE
Merge pull request #463 from emorency/OPAL-2290-Variable-edit-validation

Adding comments to add groups suggest list box and follow-up of last pull request comments
OPAL-2256 Refactored so that Rserve is used if available locally.
Code cleaning
Fixing refresh summary on a derivation modal window (post with script instead of get)
Merge pull request #464 from emorency/OPAL-2290-Variable-edit-validation

Fixing refresh summary on a derivation modal window (post with script in...