Pibooth-google-photo

Major changes
---------------

- Fix reading client ID file

Major changes
---------------

- Save credentials if client_id/secret have changed
- `pibooth --reset` will clear Dropbox authorizations

Major changes
--------------------

- Fix `is_reachable()` method

Major changes
--------------------

- Set ``app.previous_picture_url `` with ``baseUrl`` which give access to the photo without login
- Token authorization is now stored in ``pibooth`` configuration folder

Documentation update
------------------------------

- Update documentation with URL validity duration

Major changes
--------------------

- Set ``app.previous_picture_url `` with uploaded picture after processing

Documentation update
------------------------------

- Update documentation with URL access

Major changes
--------------------

- Drop Python 2.7 compatibility, Python 3.6+ is now required
- Remove activate params because pibooth can now disable plugins

Documentation update
------------------------------

- update doc for create goggle credential file thank to anxuae