[admin] Refactor types and methods views
[admin] Refactor grading views
[admin] Refactor users and roles views
[admin] Refactor simple_grade_types and badge_types views
[admin] Refactor specialties views
[admin] Refactor departments views
[admin] Fix simple_grade_types_routing spec
[admin] Refactor presets view
[admin] Basic schools views refactoring
[admin] Fix routing specs
[admin] Fix controller specs
[admin] Fix schools/programs feature spec
[travis] Add postgre 9.3 as addon
Merge branch 'staging' into refactor_admin
[admin] Clean app folder based on rubocop suggestions
Merge branch 'staging' into refactor_admin
[admin] Clean some specs based on rubocop suggestions
[admin] Fix schools_controller
[admin] Refactor school_years views
[admin] Clean code based on rubocop suggestions