first spec
requiring file
adding TubeTrain class
fixing the spec
NEW ERROR FORR U
double setup
fixed random method
new test for station name
created station_names method
new test for station name now passing
Merge branch 'master' of https://github.com/tansaku/DoubleExercise
Merge branch 'master' of https://github.com/PairProgramming/DoubleExercise
initial station spec
Merge branch 'master' of https://github.com/tansaku/DoubleExercise
added station class