#736: Breadcrumbs: don't link if show action is disabled

This resolves #736 by simply displaying the result of `display_name` if
the show action is disabled, instead of attempting to link to the
resource in question.
More useful `actions` method for `index_as_table`
correct mistakes
don't forget for backwards compatibility

for :name option
Merge pull request #3020 from mindhalt/patch-3

More useful `actions` method for `index_as_table`
updates to #3020

Also: adds a test!

For some reason `rake docs:build` is failing…?
Fix typo on method name
Merge pull request #3029 from orendon/fix-typo-pundit-adapter

Rename method in order to fix typo
Add xdan-datetimepicker-rails and datetime_picker input
Rename to combined_date_time_picker, add specs
Fix the broken datepicker and combined_date_time_picker specs
Add docs for combined date-time picker
Properly add datetimepicker to its fields

This will now go through the page and find all fields
which will use the combined date-time picker and set them up
on page load. It will also go through and find relevant fields
to set up whenever a has_many field is added.