[views] index/edit/delete/primary for grading method set
[locale] grading method set
[factory] grading method set
[model] grading method set validations, attr_accessible and instance methods for primary
[menu] make sub menu and add grading method set
[routes] grading method set
[migration] default value for is_primary
[controller] grading method set controller
[spec/models] testing mass assignment and uniuqness validator
[spec/req] chaning to proper subfolder and specs for graidng method sets
[validation] add uniquness/scope validation to grading_method_set_item
[locales] grading_method_set_item
[routes] grading method set item
[spec/model] uniquness scope validation for grading method set item
[controller] grading method set items
[factory] grading method set item
[view] show view for grading method set
[view] grading method set items
[spec/req] grading method set item request specs
[fix] typo for new hash syntax