Merge pull request #17 from raghav1987/Preprocess_Bike_Data

Preprocess bike data
create closest bike and open dock methods
Merge pull request #18 from DineshRai/create_helper_methods_for_closest_stations

create closest bike and open dock methods
Map trial
remove conflict in  application helper
fix syntax error
Merge pull request #19 from cicadas-2014/fix_helper_method_for_closest_bikes

fix syntax error
Fix Dinesh syntax error merge conflict
Application helper methods need some tweaking