OPAL-1929: Created widget for Namespaced attribute table, Allow to delete attributes
OPAL-1929: Edit/Delete multiple items. Adding a column for Edit/Delete a single item. Implemented authorization for checkbox and actions columns.
OPAL-1929: Fixing some warnings and removed commented out class
Work on UI for subjectCredentials (OPAL-2136, OPAL-2137)
OPAL-2153 - Fixed the creation of a project without a database
Fix Code Size PMD warnings
Fix Code Size PMD warnings
Merge pull request #363 from emorency/OPAL-1929

Opal-1929: Add/Delete in bulk and added actions column visible when authorized
Merge pull request #364 from kazoompa/bug-OPAL-2153

OPAL-2153 - Fixed the creation of a project without a database
Corrected PMD errors
Merge pull request #365 from kazoompa/pmd-corrections

Corrected PMD errors
OPAL-2144 Functional units removed from import/export services and replaced by the identifiers mapping concept
Fixed some PMD warnings