JSHint: Add empty Ignore parser
Unsign assembly to allow unsigned packages

WebEssentials can now use Minimatch
https://twitter.com/Schabse/status/387269775501447168
https://twitter.com/Schabse/status/387270487287406592
Use Minimatch to duplicate JSHint's ignore logic
Fix typos
Refactoring
Improve error logging

ex.ToString() returns stack trace and inner exception
Recognize JSHintIgnore (resolves #22, #81)

Parsed files are cached for performance
Clear errors if file is added to JSHintIgnore
Merge pull request #121 from SLaks/jshint-ignore

Recognize JSHintIgnore files