Separate warnings from errors
Include "warn"/"error" in captured message, so they can be displayed differently

Fixes #2
Add basic README
Add blog/twitter links
Adds an option to specify a custom configuration file for coffeelint.
Merge pull request #3 from fgeller/add-coffeelint-config-file-option

Adds an option to specify a custom configuration file for coffeelint.
Tidy up construction of coffeelint command line
Add a custom group
fixes title in README
Merge pull request #4 from bmabey/patch-1

fixes title in README
Merge branch 'level' of github.com:thomasf/flymake-coffee