OPAL-2201: Setting the application name to the name found in general conf. Added validations of general conf.
(cherry picked from commit 928fb09)
Merge pull request #505 from emorency/OPAL-2201

OPAL-2201: Setting the application name to the name found in general con...
OPAL-2351: Use callback on response 400
Merge pull request #506 from emorency/OPAL-2201

OPAL-2351: Use callback on response 400
OPAL-2381: Index variables AND values when executing the "Index Now" action.
Merge pull request #507 from emorency/OPAL-2381-variable-index

OPAL-2381: Index variables AND values when executing the "Index Now" act...
OPAL-2392 - addde validation when no file or folder is selected
Merge pull request #508 from kazoompa/bug-OPAL-2392

OPAL-2392 - addde validation when no file or folder is selected