Add archived column to project
Add new routes
Add archive project action
Add archive and active action
Add archived view
Fix existing actions for archived projects
Add specs
Add read-only dashboard page
Fix header
Merge branch 'master' of github.com:ESTCOSMO/mitsumottaro into archive-project
Closed #110
Fix reviewed point
Fix deprecated code
Fix project copy method
Merge pull request #116 from irasally/archive-project

プロジェクトのArchiveが出来るようにする