Adding new Files: tracks.js.coffee , tracks_controller ,
Modifing files routes.rb , seeds.rb
Indentation fix and merging master
fixing indent of routes and long lines of the coffee script and controller
edit long line in show of track
Merge pull request #195 from alaashafaee/create_track_4.1_2

@MussabElDash Merging user story: Create track 4.1