Removed line in students.models.UserManager
Removed ```user.username = email``` in create_superuser.
It's already used in create_user.
Added tests for students.models.UserManager
Added a test for courses.models.Partner.
Covered Partner's __unicode__ method.
Should be done for other models, since we may have problems with utf-8.
Sorted fields in courses.models
Refactored and extended tests in forum.tests
Extended forum.tests
Extended students.tests.
Added tests for Solution's methods
Refactored method in students.models.User
Extended students.tests.
Added tests for students models methods
Fixed test in students.models.
Fixed SolutionTest.test_add_solution_not_existing_task
Extended faq.tests
Extended courses.tests.
Tested every courses.views and removed unused view, template and url
Excluded __init__ lines in coverage.rc
Added tests for website app.
Updated code styling in website.views
Refactored code and added/fixed tests
PEP8 fixes all around
Merge pull request #17 from HackBulgaria/expand_tests

Expand tests