Converting fashun to coffeescript.

After modifying image tags, and not being sure what I want to work on next, I'm moving the source to coffeescript
This is partially to see how the transpiling works on the server.
I also fixed the issue where tags were being saved to fasuns so now fashuns should stop multiplying.
I think there's an issue where sometimes the user is created again even if one already exists. This means that I
could lose my attrribution for my created posts. I haven't seen a repro, but I should keep an eye out.