stripping errorneous comma in json

Hi - apidocs.js is pretty awesome.  I'm going to be using it for multiple projects over the next few weeks. 
I'm really just doing this to see if you'll accept contributions, if so I'll send other (bigger) fixes.
If you'd prefer you can add me (brianhorakh) as a contributor to the main project(s) and I'll just make them there directly.  Take care!