Merge pull request #115 from chrisjshull/patch-1

Provide clearly written out license.
Merge pull request #118 from chrisjshull/master

treat transition-property like transition for value prefixing
Made at2x require a hi-res tag in the value to activate (as per Styl Discussion)
Switched keyword from hi-res to at-2x for at2x
Updated Documentation for at2x
Merge pull request #121 from rschmukler/at2x

Made at2x require a hi-res tag in the value to activate
fix part docs of .mixin() in .function() section
Merge pull request #122 from bolasblack/fix-mixin-document

fix part docs of .mixin() in .function() section
Support nested function
Merge pull request #119 from bolasblack/support-nested-function

Support nested function
prepare changelog for 0.19
fix part docs of .function() in .mixin() section
fix various lint errors
Merge pull request #124 from bolasblack/fix-nested-function-documents

fix part docs of .function() in .mixin() section
Make nested function document style close to other section.
Merge pull request #125 from bolasblack/update-nested-document

Make nested function document style close to other section.
Update Readme.md
more built with rework
remove all vendor support

- plugins are now noops
- .properties is an empty array
- .vendors() is a noop
- clean up and fix examples, remove old examples
- clean up tests
fix rework.inline() test

for whatever reason, the base64 string was incorrect. closes #127