Remove support for node 0.6.x with path.exists()
Clean up the public interface to the module by removing private methods from the prototype
Add spec command to package.json, for running tests with spec reporter
Update package.json with some more info; remove jasmine-node dev-dependency
Tidy up RPI mode pin mapping a little bit
Use constant PATH variable in tests for GPIO filesystem root path
Fix bug where pins were not unwatched correctly after unexport
Bump to v0.2.0
Clean up pin/mode handling
Add test for specifying an invalid pin direction
Tidy up mode handling a bit more
Refactor handling of hardware revisions, and include support for overvolted hardware
Tidy up tests for write(), so that it is easier to add tests around here
Throw error if pin is written to but has not been setup
Improve read() tests to cover pin in on and off states
Throw error if pin is read from but has not been setup
Bump to v0.3.0