Collective.z3cform.datagridfield

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- Drop support for Plone 4.
[pbauer]

- Use Ressource-Registry (Pat-Registry), Update JS/CSS, Add Uninstall
[2silver]

- use Plone5 glyphicons instead of images
[2silver]

- Added missing upgrade step, calling browserlayer setup.
[sgeulette]

- Display column description if provided in schema `field.description`.
[gbastien, bleybaert]

- Specify in README.rst that versions >= 1.4 are for Plone 5+ and
versions < 1.4 are for Plone 4.
[gbastien]

- Usability change: add an (hidden) label inside the add commands
[keul]

- Compatibility with Plone 5 modals/overlay from mockup
[keul]

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- Extend uninstall profile.
[thet]

- Wrapped commands inside ``A`` tags, required for accessibility reason (change backported from Products.DataGridField).
This also simplify customizing icons with pure CSS.
[keul]

- Replaced minus icon with a more usable delete icon.
[keul]

- Removed ols-school ``*`` chars for marking fields as required.
[keul]

- Fix object access
[tomgross]

- Fix usage of related items widget in subforms
https://github.com/plone/Products.CMFPlone/issues/2446
[tomgross]

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- Set widget mode on cell widget in order to support autoform mode directive. [jone]

- Bugfix: do not try to update readonly fields. [jone]

- Cleanup: utf8 headers, isort, code-style. [jensens]

- Remove dependency on plone.directives.form in setup.py,
it was not used any longer. [jensens]

- Feature/Fix: Support widgets using patternslib in a DictRow.
[jensens]

- Fix: 36 remove grok from all documentation since grok is no longer supported.
[jensens]

- Copy relevant parts of ObjectSubform from z3c.form 3.2.10 over here, it was removed in later versions.
[jensens]

- Add Browserlayer and use it, also add uninstall step.
[jensens]

- Move Demo package to in here.
[jensens]

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- Fix validation exception on readonly fields.
[rodfersou]
- Fix bug for widget.klass is NonType in the block view when defining the class for the field.
- Allow deletion of last row in non-auto-append mode.
[gaudenz]
- fixed binding for IChoice fields during validation [djay]
- plone 5 compatibility and fixed travis testing for plone 5 [djay]

----------------

- Removed JS code that relies on firefox being used.
[neilferreira]

- Stopped referencing the 'event' element when creating a new row as the event
that triggered the content of an input changing may have been from another element.
[neilferreira]

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- Add 'form-widgets-field_id' as widget css id (consistency with other widgets).
[thomasdesvenain]

- Fix package dependencies.
[hvelarde]

- Use BlockDataGridFieldObject for rows in a BlockDataGridField.
[gaudenz]

- Filter out any auto append or template rows in updateWidgets.
[gaudenz]

- Add row parameter to aftermoverow JS event
[gaudenz]

- Don't reset class attribute on cloned template rows
[gaudenz]

- Replace row index in all template row elements, not just input elements.
Replace the index in id, name, for, href and data-fieldname attributes
when cloning the template row.
[gaudenz]