Log Message:
py-requests-oauthlib: updated to 1.2.0

v1.2.0:
This project now depends on OAuthlib 3.0.0 and above. It does not support \ 
versions of OAuthlib before 3.0.0.
Updated oauth2 tests to use 'sess' for an OAuth2Session instance instead of auth \ 
because OAuth2Session objects and methods acceept an auth paramether which is \ 
typically an instance of requests.auth.HTTPBasicAuth
OAuth2Session.fetch_token previously tried to guess how and where to provide \ 
"client" and "user" credentials incorrectly. This was \ 
incompatible with some OAuth servers and incompatible with breaking changes in \ 
oauthlib that seek to correctly provide the client_id. The older implementation \ 
also did not raise the correct exceptions when username and password are not \ 
present on Legacy clients.
Avoid automatic netrc authentication for OAuth2Session.

v1.1.0:
Adjusted version specifier for oauthlib dependency: this project is not yet \ 
compatible with oauthlib 3.0.0.
Dropped dependency on nose.
Minor changes to clean up the code and make it more readable/maintainable.