OPAL-1647: Clear value table before fetching new variables
OPAL-1647: Cleaning code
OPAL-1477: SupressWarnings for pmd warning
Merge pull request #77 from kazoompa/master

OPAL-1444
Merge pull request #76 from emorency/feature/opal-1477-view-from-display

OPAL-1477: SupressWarnings for pmd warning
Merge pull request #75 from emorency/feature/opal-1647-empty-value-sets

Feature: opal 1647 empty value sets
OPAL-1390: Clickable column header on variable values table
OPAL-1390: Removed GWT.log
OPAL-1390: reverted setTable(null)
OPAL-1390: removed unnecessary class
Merge pull request #78 from emorency/feature/opal-1390-clickable-variable-header

Opal-1390: clickable variable header
OPAL-1662: ViewDto returns only "from" tables for which we have access or exists
Merge pull request #79 from emorency/feature/opal-1652-view-from-table-access

OPAL-1662: ViewDto returns only "from" tables for which we have access o...
OPAL-1662: NPE when checking a table that has been deleted
OPAL-1662: NPE when checking a table that has been deleted
OPAL-1549: Improve index status UI
OPAL-1549: Fixed 404 error when getting from tables of a view that its table has been recently dropped.
OPAL-1662: Fixed PMD warnings
Merge pull request #80 from emorency/feature/opal-1652-view-from-table-access

Opal 1652 view from table access
OPAL-1457: Data import format help text