Update packages.config

Added minimatch package (required by .weignore)
Create WEIgnore.cs

Added WEIgnore class.
Update JsHintRunner.cs

Added TestWEIgnore call.
Update EditorExtensions.csproj

Added reference to Minimatch
Update EditorExtensions.csproj

Added Options\WEIgnore.cs
Update CoffeeScriptMargin.cs

Added TestWEIgnore
Update LessMargin.cs

Added TestWEIgnore
Update LessProjectCompiler.cs

Added TestWEIgnore call
Merge pull request #73 from ramon18/master

Added support to .weignore