Add lodash-rails gem

This is needed for making various JavaScript things less painful.

Signed-off-by: Ari Rahikkala <ari.rahikkala@gmail.com>
Remove replace_box'd items from selected_groups

Signed-off-by: Ari Rahikkala <ari.rahikkala@gmail.com>
Use name_selected in selected boxes if available

Signed-off-by: Ari Rahikkala <ari.rahikkala@gmail.com>