ソフトウェアエンジニアリング

[phase-11]add attachable, but have permission problem

[phase-11]add index by rubi

[phase-10]add radio_button to select terms view with grouping by categories or without grouping.

[phase-10]modified terms index with category grouping

[phase-9]add attributes to term

[refactoring]changed calling method to find project to use redmine's standard method.

[bugfix]for category controller, before calling authorize, should call find_project

[bugfix]before calling authorize, should call find_project

[phase-8]add authorize in controller

[phase-8]introduced security and authorization