RedMine Mirror Source

* Changed Project#activities to allow getting inactive Activities also:
* Changed the Enumeration#all named_scope to exclude project specific Activities
* Changed the Project has_many time_entry_activities to include all by default
and provided an #active method to filter them to active ones only
* Split Project#activities to two methods and gave it a parameter that is used
to determine if inactive activities are included (default is no)
* Added a reset button to delete all project specific activities.
* Added ProjectsController#reset_activities to remove the project
specific activities
* Added a HTTP DELETE route for reset_activities
* Changed the permissions for managing project activities to have access to the
ProjectsController#reset_activities action
* Added a way to bulk save Project specific Activities in ProjectsController
* #save_activities will save all the changed activities, including update the
existing records
* Added helper methods to the controller which will be refactored later
* Allow the same TimeEntryActivity names on different projects

#4077