[views] add missing partials + rename arguemnts to criteria where needed

Conflicts:
	admin/app/views/gaku/admin/grading_methods/_form_fields.html.slim
[js] rename arguments to criteria
[spec/feature] rename arguments to criteria
[js] remove line for placeholder
[locale+view] eg key

Conflicts:
	core/config/locales/en.yml
[migration] make migration more informative/ leave mine
[controller] change attributes
[locale] fix locales
Merge pull request #295 from Genshin/grading_method_libs_rename

Grading method libs rename