User rbenv instead of rvm
Add Gemfile and use bundler to install gems
Update gitignore for rbenv
Rename Pedometer model to Analyzer
Change default user rate
Add detection of false steps (too close together)
Add male test data
Add /data endpoint to list all test files
Add TODO
Parse data into gravity data when in accelerometer format
Refactor, intriduce alpha of 0.97
Fix tests
Clean
Convert all user attributes to readers
Add Device model
Rename DeviceData to Parser
Refactor Parser to user Device instead of raw data directly