Our first mocha and chai tests with a bit of sinon-chai for good measure. These are two simple tests for parser.raw and parser.readline, as well as a missing semicolon in readline.
Add travis to run our unit tests.
Merge pull request #228 from reconbot/unit-test

Unit tests
Merge branch 'master' of github.com:voodootikigod/node-serialport into fix226
Clean up unit tests, add echo test