Display field units for concepts with one field

Fixes #526

Signed-off-by: Ryan O'Hara <oharar@email.chop.edu>
Show notification only when columns are empty

Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
Merge pull request #564 from ryanjohara/issue-526

Display field units for concepts with one field
Merge pull request #565 from hassanNS/issue-562

Show notification only when columns are empty
Show filter information on saved queries

Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
Merge pull request #557 from hassanNS/issue-552

Show filter information on saved queries