Add Version Header to API/Webhook responses

Resolves https://github.com/the-blue-alliance/the-blue-alliance/issues/1091
It's the first version on APIv2. The v2 part is also represented in the
url.

It's like the fully qualified version name is v2.1
On Nov 6, 2014 1:31 PM, "Eugene Fang" <notifications@github.com> wrote:

> In controllers/api/api_base_controller.py:
>
> > @@ -52,6 +52,8 @@ def track_call(api_action, api_label, x_tba_app_id):
> >
> >  class ApiBaseController(CacheableHandler):
> >
> > +    API_VERSION = 1
>
> Why is the 1 not 2?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/the-blue-alliance/the-blue-alliance/pull/1092/files#r19963724>
> .
>