Added some meat to stub driver and made it a first class object that can be used in a rails development environment. Also added some testing and coverage tools (simplecov, mocha)
Added Platform Driver to Spi

Added needed spi functions to stub driver

Added .travis.yml
Update SPI to use the platform driver
Add basic SPI spec tests; Move SPI constants into Spi to remove dependency on Bcm2835
Merge pull request #1 from wakkow/develop

Develop
merge in spi spec additions
Merge pull request #15 from bguest/stub-driver

Added some meat to stub driver and made it a first class object that can...