Refactoring resource search feature.
- permission change default style (view_*, manage_*)
- use :datetime option at call acts_as_event
add index to bx_resource_categories.project_id
Refactoring resource search feature.
- set :permission option for removing deprecation message.
- set :date_column option for ordering.
add license(MIT) file.
modify class name from bx-category-title to bx-content-title.