v1.9.2

    - Works with newer httplib2 (Closes: #950038).

Don't send headers until we've read some results

If the WSGI app is a generator function (using "yield"), then it won't
do anything at all until its first iteration, including setting headers
or calling start_response to write the status line of the response.
Turn the handle once to make sure that the app has started before
writing headers.

And remove 3.4

Enable support for verify=False set in requests library.

* fixes for modern httplib2

Updates for dependent library changes

httplib2 added some more kwargs, so rather than continuing
to explicitly list each one (they are ignored), use **kwargs
instead.

update some tests to work correctly with modern pytest, which
no longer allows the string-as-callable to check for exceptions.
Use py.test.raises context manager instead.

remove python versions that tox no longer supports

v1.8.1

They pass a key_password to the HTTPConnection which
the six version does not accept.

Prepare as a 1.8.1 release

- package as a wheel too
- remove support for python 3.3

- Allow nested interceptors as context managers

Allow nested interceptor context managers

The previous implementation of interceptor context managers would remove
the connection class overrides whenever a context manager exited. This
meant that if more than one interceptor was present others would stop
working when one was removed.

This only removes if there are no intercepts left.

Fixes #53

- no longer swallow wsgi.errors into a BytesIO, send to sys.stderr
  instead

set wsgi.errors to sys.stderr 

    understood by upstream unit tests.

v1.5.0

* ignore socket_options when intercepts urllib3