converted routes to user friendly version
Merge pull request #21 from zrivest/edit_course_page

fixed missing end issue in course controller
fixed merge conflicts check routes to edit
WIP: implementing user_courses controller; and moved edit action and view to user_courses
used all_students method in groups model instead of students to find current students for that class
Merge pull request #19 from zrivest/create_saving_of_gen_groups

converted routes to user friendly version
added css and navbar
fixed merge conflicts
Merge pull request #22 from zrivest/css

added css and navbar
fixed a bug keeping people from getting to the website
Merge pull request #24 from zrivest/css_and_file_check_after_major_merge_conflict

fixed a bug keeping people from getting to the website
fixed merge issue for edit roster not displaying students on edit page