Remove cached enum values in enum itself!
OPAL-2404: Close messages when navigating away from the Post Install page
Merge pull request #549 from emorency/OPAL-2404-Alert-div-duplicate

OPAL-2404: Close messages when navigating away from the Post Install pag...
OPAL-2499: SavedHandler can be null when initialized by ConfigurationPresenter (onCreateKeyPair and onImportKeyPair )
Merge pull request #550 from emorency/OPAL-2404-Alert-div-duplicate

OPAL-2499: SavedHandler can be null when initialized by ConfigurationPre...