[IMP] jsonify exceptions
[IMP] jsonify exceptions

- removed unused mako filter
- import reordering

indico/indico,indico/indico,indico/indico,mvidalgarcia/indico,DirkHoffmann/indico,ThiefMaster/indico,mic4ael/indico,DirkHoffmann/indico,mvidalgarcia/indico,mvidalgarcia/indico,OmeGak/indico,pferreir/indico,pferreir/indico,mic4ael/indico,ThiefMaster/indico,mic4ael/indico,pferreir/indico,DirkHoffmann/indico,ThiefMaster/indico,OmeGak/indico,pferreir/indico,OmeGak/indico,OmeGak/indico,mvidalgarcia/indico,DirkHoffmann/indico,ThiefMaster/indico,mic4ael/indico,indico/indico