label_text for wrapper
rename variable label_text
add test for label_text method
Add :translate setting for include_blank and prompt
Allow i18n key for include_blank and prompt
Allow :t as a shorthand for :translate
Pluralize namespace for consistency
1.9 hash syntax
Fix the way `detect_common_display_methods` finds label & value methods

It was previously looking at an instance of the `collection` instead of the
`collection_classes`. Since the grouped collection input supplies a list
of collection classes that differ from the regular collection, it was
incorrectly looking for labelling and value methods on the option
instances, rather than the optgroup instances.
Added the ability consider whether the the user exlicitly specified the label or the framework generated it when applying global custom formatting.
Cache the test for parameters size of label_text for better performance.
Changed call to label_text to always pass the new thrid parameter, and made the default a proc that ignores it. This is a breaking change.
Handle situation when I18n date.order values are strings

Rails 4 changes the `date.order` I18n setting to return strings, which
resulted in a missed lookup in POSITION, and a value like `date_i`
instead of `date_1i` for the `for` attribute on `label` elements.
Merge pull request #848 from mjankowski/master

Handle situation when I18n date.order values are strings
update CHANGELOG [ci skip]
update README [ci skip]

closes #845
Just symbolize the date order value when necessary
Fixed typo
Merge pull request #852 from thiagofm/patch-2

Fixed typo
collection tags accept html attributes as the last element of collection