Sc.social.like

^^^^^^^^^^^^^^^^^^^

- Avoid ``KeyError`` when upgrading the package from previous versions.
[hvelarde]

^^^^^^^^^^^^^^^^^^^

- Code clean up and refactor.
[hvelarde]

- Open Graph properties where moved out of the Facebook plugin as they are used by other plugins.
[hvelarde]

- Twitter widgets now respect users' privacy.
[hvelarde]

- Google+, LinkedIn, Pinterest and Twitter widgets code was updated.
[hvelarde]

- Remove redundant metadata as Twitter can use Open Graph properties as fall back (closes `112 <https://github.com/collective/sc.social.like/issues/112>`_).
[hvelarde]

- Remove useless scale caching on the request as it seems to be causing colateral issues (closes `109 <https://github.com/collective/sc.social.like/issues/109>`_).
[rodfersou]

^^^^^^^^^^^^^^^^^^^

- Fix ``data-href`` attribute on Facebook plugin to point to canonical URL;
this should finally fix the counter on the widget.
[rodfersou]

- Fix Canonical URL updater form;
a new upgrade step is provided to update the ``objects_provides`` catalog index (fixes `115 <https://github.com/collective/sc.social.like/issues/115>`_).
[hvelarde]

- Add ``canonical_domain`` field record to the registry when upgrading;
this fixes an issue in the upgrade step to profile version 3045 (fixes `114 <https://github.com/collective/sc.social.like/issues/114>`_).
[hvelarde]

^^^^^^^^^^^^^^^^^

- Fix support for canonical URL in Facebook's Open Graph for Dexterity-based content types;
previously the current URL was incorrectly used as the canonical URL of an item leading to zeroed counters when moving content around or when changing the schema to access the site (HTTP to HTTPS).
Check package documentation for more information on how to use this new feature (fixes `104 <https://github.com/collective/sc.social.like/issues/104>`_).
[hvelarde]

- Drop support for Plone 4.2.
[rodfersou]

- In Plone 5, keep in sync some redundant fields found in the new Social Media configlet.
Changes on ``facebook_app_id``, ``facebook_username``, or ``twitter_username`` fields will be reflected in both configlets (fixes `100`_).
[hvelarde]

^^^^^^^^^^^^^^^^^^

- Add Facebook control panel setting for showing/hiding the number of likes. By
default the Facebook plugin still shows the likes.
[fredvd]

^^^^^^^^^^^^^^^^^^

- Update Brazilian Portuguese and Spanish translations.
[hvelarde]

- Add support to share content by email (closes `91`_).
[rodfersou, hvelarde]