modifications
Update README.md
Fixing Stuff => Staff
Fixing merge

Conflicts:
	tutor/app/models/staff.rb
	tutor/app/models/test_case.rb
	tutor/db/migrate/20140323113417_create_test_cases.rb
	tutor/db/schema.rb
fixing error
fixing many Lecturer_Topics
fixing TA has many courses
Merge pull request #147 from alaashafaee/dev_models

Dev models
adding TrackProgression model
Merge pull request #148 from alaashafaee/dev_models

Dev models
updating
remove User model attr. to lec,student,TA
Initial
Fixing again
layout basic
Merge branch 'dev_models' of github.com:alaashafaee/Coolsoft-14 into dev_models
Layout
authentications modification
Fixing conflicts with dev_models
Fixing conflicts with dev_models 2