Migrating to support oauthlib-0.6.0

- Just the tests, for now.
create_request_token_response return 3-tuple now.
Quote those '%' and '+' or whatever...

- Would have saved self quite a bit of sanity.
Consolidate request token invalidation

- Through that useful `invalidate_request_token` method which is now
  provided.  No more splitting the removal of scope and its request
  token.
Better endpoint checking/bypass

- Ensure that the extraction checks will filter out the query parameters
  from being included in the endpoint check.
- Relates to Issue #3.
Changelog for all the improvements done so far.
Move the icon to a more standard location

- Updated the file name reference in the initialize method to be more
  cross-platform.
Include link to the configuration from Site Setup
Rename a template.

- It is a view, but it's also the root view of this implementation.
Provide more links back to parent forms.

- Scope profile display form view now has links back to parent.
Logging potential difficult spots in ctsm

- An attempt to potentially aid advanced users in finding out where or
  how the content type scope manager might be failing.
- Part of an attempt to hunt down cause of issue #2.