[IMP] Add rating to export abstract list excel
[IMP] Add rating to export abstract list excel

- Closes #1036.

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