Merge pull request #4 from madskristensen/master

Sync with master
Adding Autoprefixer support
Update to autoprefixer to fix source maps
Merge
Merge pull request #7 from madskristensen/master

Merge
Removing unused usings
Updates to autoprefixer
Bootstrap: Remove columns validation

This fixes #1139
Merge pull request #1150 from GProulx/RemoveBootstrapColumnsValidation

Bootstrap: Remove columns validation
HTML: Refactored Peek Definition
HTML: Peek Definition for IDs
HTML: Refactored GoToDefinition
HTML: Improved GoToDef precision
Removed redundant classification types
Removed redundant classification types
JS: Added un-minify to editor context menu
JSON: Intellisense for "required" values
JSON: Refactorings
Signed MarkdownSharp.dll
Nightly v2.1.6