Flaskify 2

I've replaced the werkzeug calls with Flask calls, and added two flask extensions that make this easier. Tests pass.
Updated in response to Patrick's issues, please take a look.
Kerry
On Dec 19, 2014 5:39 PM, "Patrick Shields" <notifications@github.com> wrote:

> In ga4gh/server/views.py
> <https://github.com/ga4gh/server/pull/52#discussion-diff-22133720>:
>
> >      data = request.get_data()
> > -    # TODO this should be a more specific Exception for JSON
> > -    # parse errors; malformed JSON input is a HTTP error, whereas
> > -    # anything after this gives a HTTP success, with a GAException
> > -    # response.
>
> IMHO, this comment should stay.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/ga4gh/server/pull/52/files#r22133720>.
>