added controller for courses
Adding Course Controller
Addin Topics Controller
Fixing Conflicts
fixing the route and flash bugs
added create course page
Merge branch 'C1_Akram' of https://github.com/alaashafaee/Coolsoft-14 into C1_metawaa

Conflicts:
	tutor/config/routes.rb
resolving a conflict
add
dd
Adding delete course function / Courses indexing
Fixing conflicts with dev_models
Fixing conflicts with dev_models 2
changed redirection after creation
Merge branch 'C1' of https://github.com/alaashafaee/Coolsoft-14 into C1
Session IDs / Adding course to logged in lecturer
Fixing conflicts with C1
Merge remote-tracking branch 'origin/C1' into C1_Assuty
layout modificaitons