More tokens

More csrf tokens for various forms in Airtime, including the multi-part file upload.  I was able to test all of these, but for the multi-part file upload I was never able to see the library enter the list of things in media.  I believe this is an unrelated problem because it seems to happen even without my code change.  The ajax requests for multi-part file upload appear to work (from what I can see in the network manager in chrome developer), but the files not appearing bug interferers with my ability to completely verify this bug fix.