Make .odp an allowed and indexed file type
Make .odp an allowed and indexed file type

We already allowed editors to upload OpenDocument documents (odt) and spreadsheets (ods). Presentations (odp) should also be allowed to be uploaded and indexed.
hotvulcan/whitehall,YOTOV-LIMITED/whitehall,YOTOV-LIMITED/whitehall,robinwhittleton/whitehall,askl56/whitehall,hotvulcan/whitehall,askl56/whitehall,ggoral/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,ggoral/whitehall,alphagov/whitehall,robinwhittleton/whitehall,alphagov/whitehall,ggoral/whitehall,hotvulcan/whitehall,YOTOV-LIMITED/whitehall,robinwhittleton/whitehall,askl56/whitehall,robinwhittleton/whitehall,hotvulcan/whitehall,askl56/whitehall,alphagov/whitehall,ggoral/whitehall