Merge pull request #5 from calabash/changing-old-files

Change old files (moving them around)
BackwardsCompatability: Add script to rename module Calabash::Cucumber to Calabash::IOS
Use private flag for yard
Add GitHub style guide link
Separate directories for short and long tests
Guard should watch the gemspec
Guard should watch spec/lib and lib/calabash
Merge branch 'develop' into united
Merge pull request #8 from calabash/feature/add-lib-and-integration-to-spec-dir

Add lib and integration to spec dir
Merge branch 'develop' into united
Add environment class with basic ability to get/set env variables
COF: Move Android environment file