fixed link to create new assignment on teacher classroom overview page
styled the teacher's view for the student overview page
styled the assignment view for the teacher
styled edit page for assignment for teachers
styled register for a class page
styled create a new class page
styled the create new assignment page
fixed merge conflict
fixed bug can now create new assignment with form
fixed bug, can now edit assignments
Merge pull request #54 from whoisglover/css2

basic styling on all pages