Refactor HTML completions

Eliminates 100+ lines of code; should be faster too
Merge pull request #48 from SLaks/code-cleanup

Refactor HTML completions
Fixed HTML auto-formatting
Fixed issue with ZenCoding
Fixed #40
Added robots.txt syntax highlighter
Adding sample robots.txt
Added gzip support to minificatoin (css and js)
Cleaned up gzip method a bit
Updated NuGet packages
Fixed issue with meta completion
Fixed output window hijacking and HTML image preview
Added configurable files to ignore from JSHint
Fixed issue with GetRootFolder() when bundling
Fixed bundling on build
Fixed issue with solution folders
Code cleanup
Removed old comments
Added JavaScript and Robots.txt Intellisense
Cleanup