Added 'no filters' message in tbody when there are no active filters
Created functionality to add filter into API using bootstrap modal.
Filter modal functionality update: add multiples of same filter, add new filters with button, remove filters, reset modal form.  **Filters will now update API**
Debug filter tools and refresh page when adding or deleting, added filter stuff to traplist
Merge filter frontend branch with lgroschen/master
Delete filterlist_modal.html
Merge pull request #1 from lgroschen/master

lgroschen/nsti/master