Started to add G line and started refactoring the transfer_instructions method.
Factored in G stops for transfer_instructions method. Need to clean up..
Added some comments for later reference.
Made stations instance variables.
Tried to test issues with DirectionGiver
Needed to add @instructions to transfer_instructions.
Used Rubocop to detect stylistic issues. Deleted unnecessary returns, changed double-quoted strings to single-quoted.
Cleaned up instance variables that were unnecessary.
Cleaned up variables and returns.
Merge pull request #4 from rfarine/new-subway-line

Add A New Subway Line