Cleaned up model code and tests
Merge pull request #5 from dkumar/refactor

Cleaned up model code and tests
Fixed tests
fixes to pull request comments
Merge pull request #7 from dkumar/it2_tests

Fixed unit tests for studygroup/user specs
response to second pull request
Merge pull request #8 from dkumar/it2_tests

fixes to pull request comments
Put controller logic into User model and removed unnecessary and redundant logic from StudyGroup and Course models
Changed autocomplete code to get course names from database
Added more courses and test user to seed file
Merge pull request #9 from dkumar/it2_tests

Put controller logic into User model
Merge pull request #10 from dkumar/autocomplete

Autocomplete
Merge branch 'master' into topBannerLayout

Conflicts:
	Gemfile
	Gemfile.lock
	app/views/users/show.html.erb
	spec/models/user_spec.rb