OPAL-2203 - changed create to register and remove to unregister in DB related UI
Merge pull request #456 from kazoompa/bug-OPAL-2203

OPAL-2203 - changed create to register and remove to unregister in DB related UI
BIRT upgrade step added
Report UI reviewed.
Report list is sortable
R libPaths set before doing datashield or reporting
Code cleaning
Reverting groups selection widget
OPAL-2252 - made sure the TabPanel.onShow() event has a target.
Merge pull request #457 from emorency/OPAL-2290-Variable-edit-validation

Reverting groups selection widget
Merge pull request #459 from kazoompa/bug-OPAL-2252

OPAL-2252 - made sure the TabPanel.onShow() event has a target.
OPAL-2283 identifiers mapping name handled when assigning in R (applies to datashield as well)
PMD fix
Enable SessionValidationScheduler
OPAL-2252 - used switch case to determine the selected tab, removed redundant response code from response callback handler
Merge pull request #460 from kazoompa/bug-OPAL-2252

OPAL-2252 - used switch case to determine the selected tab.