Merge pull request #121 from kazoompa/master

Merged datasource locale implementation from opal-1.13.x
OPAL-1681: Filter variable list
OPAL-1681: Filter variables within the table variables tab.
On Table values, filter a variable automatically on ENTER and resets when filter is empty
Search box on th top navigation toolbar
Changed the search filter for entity view. No more Display options, the filter textbox is always visible
Fixed warnings
Fixed size of the search textbox in the navigation menu
Fixed a warning
Checkbox column narrower by adding the style 'first-column-checkbox' to the parent table
Removing commented code
Merge pull request #122 from emorency/feature/opal-1681-filter-variables

OPAL-1681: Filter variables