If no content-type set in request w/ body, try parsing as 'application/json' first

[mikermcneil]

This is a "problem" with Express-- but I believe assuming JSON is a fair choice given where things are going with application layer communications in today's apps.

More info on the current situation:
https://groups.google.com/forum/?fromgroups=#!topic/nodejs/_S8VSZzXEQA

Solution is overriding Express's bodyParser with a modified version which supports this functionality. Keep in mind we're on Express 2.x.

[mikermcneil]

This is fixed in Connect 2.x, so this will have to wait to get fixed until we upgrade Connect/Express.

[mikermcneil]

Closing in favor of:
#51