Added tests for Transportation class
Added tests for Train class
Moved reference from Train class to Transportation superclass as it will be common. Created Bus and Flight
Added tests for Flight. Implemented Print functions
Added view controller and its table data source. Tests passed.
Tested that boarding cards display on the table
Added header to table view
Created tests for algorithm
Implemented algorithm. Tests passed
Removed ignored files
Merge branch 'algorithm' into develop

Conflicts:
	WorkAngel.xcodeproj/project.xcworkspace/xcuserdata/jaime.xcuserdatad/UserInterfaceState.xcuserstate
Moved cards initialising to ViewDidAppear
Integrated algorithm with interface