Merge pull request #56 from emorency/master

OPAL-1618: NPE when removing a table when ES is stopped fixed
OPAL-1610 - bug fix when deleting namespaces
Merge pull request #57 from kazoompa/master

OPAL-1610
Bug fix - non-modal ValueSequencePopupView remains open the next time EntityDialogView is popped
Merge pull request #58 from kazoompa/master

UI Bug
Disable incremental when importing with a unit
Merge branch 'dev-ced'
Renamed the button 'Export Variable Dictionary' and disabled it when a datasource, table or a view was empty
Merge pull request #59 from kazoompa/master

Bug fix
GWT Client logging disabled
Less log messages.
Fix OPAL-1625: Wrong layout in import data dialog when there are no unit
OPAL-1230: When the session is expired, force a session.invalidate before revealDefaultPlace