Fix handling of optional asset fields cache
Api url should be more generic
added InsertAudio wysiwyg option
js build
prevent wysihtml5 from stripping <audio>
load saved <audio> in wysiwyg
js build
Clean up local fields on meta
Strip accounts down to the bare minimum:

Removes depreciated user profiles since no one that we know of was using all the functionality.
Make versioning work with django 1.7
Merge branch 'feature/1.7' into version/2.0