Add Node 0.11 to Travis build matrix

Add coveralls.io

Adds JSCoverage instrumentation for coveralls.io on Travis

Add NPM and dependency badges

[skip ci]

Minor whitespace trimming.
[skip ci]

Added information about the configuration option relevant to source maps

Smart defaults when only source-comment=map used

Instead of just emitting `/*# sourceMappingURL=undefined */`, act like
`--source-map` option was passed

Add a link to Harp

Build: Generate runtime info with Visual Studio

The /GR tag has the same affect as the previous method of removing the
RunTimeInfo value in the binding.vcxproj
http://msdn.microsoft.com/en-us/library/we6hfdy0.aspx

Normalize spacing in binding.cpp

Fixes #207 - Handle CLI errors, and exit with code 1 if there are errors

Add JSHinting and EditorConfig

- Remove unused vars
- Remove unused parameters

- Add missing semicolons
- Remove unused parameters

Remove unused vars

- Tabs to spaces
- Remove 'runner' Mocha var since it is only invoked

- Fix indenting
- Remove unused callback

add test for error status integer, fixed path delimiters in sass.js, and fixed the double .css append in #198

mostly a refactor to clean up lots of redundant methods, and to make things a little bit more DRY.