Added new class view

Created method in classroom_controller and basic form for the student
Classroom view completed

Functional for both student and teacher user types. CSS styling has not been added yet.
Teacher's create classroom form functional

Form routes through classroom controller's create function. "New" function is hit when the form loads.
Merge pull request #17 from whoisglover/user_routes

Submission route create and test
Student can now add themselves to class

Both student and teacher forms on the classroom create page are functional. Created add_student_to_class method in the classroom model. Classroom controller's create method either creates class or adds user to class depending on current user type.
Merging new classroom views with master

Merge branch 'master' of https://github.com/whoisglover/FrogPress into new_classroom_views
Merge pull request #18 from whoisglover/new_classroom_views

New classroom views
added custom route to remove a student from a class and tested

See classroom_controller for remove_student method
Created teacher view of classroom/:id page

This includes helper methods in the classroom model to get things like recent assignments and class roster
Fixing small merge conflict, no real conflicts

Conflicts:
	app/controllers/classroom_controller.rb
	app/models/classroom.rb
	config/routes.rb
finish initial setup of classroom show partials
 - changed location of Database cleaner
 - created submission create route and test
 - created submission show / update route and test
Merge pull request #19 from whoisglover/classroom_index

Classroom show pages
Submission routes have been tested are ready for merge to master.
Merge pull request #20 from whoisglover/submission_routes

Looking good.
fixed view issues
Merge pull request #21 from whoisglover/fix_login

Fixed view issues
Fixed 'add class' loophole that allowed the same class to be added twice'
Fixed "add classroom" issues and merged with master.
Merge pull request #22 from whoisglover/fix_login

Fixed 'add class' loophole