added numeric constraints to measure
add support for short form parameters when creating measure
improved nested routes for measures, better specs
changed readme to MD, added  install info
stub Station.find_timezone to speed up tests
Mock for Timezone::Zone speeds up tests with 3x. Hell yea
Add view specs for measures
create view for station/measures
add json for station/measures
add button to clear measures to ui and wrote view and feature  specs
add index of stations to home page
cleaned up gemfile
added cardinal direction when displaying direction
stations now support slug urls