Consolidate multiple methods in form_helper into hd_picker method
Consolidate input attribute functionality to new class
Deprecate date_picker(), time_picker() & datetime_picker() for hd_picker()
Add specs for specifying the cls parameter
Consolidate deprecate calls.
Move date_only & time_only locale formats to dummy site's en.yml file
Merge branch 'feature/clean_up' into develop
Gemify v1.4.0