Adding test for nested placeholder
Merge pull request #7 from tyom/nested-placeholder

Adding test for nested placeholder
converting this Sass test script to generate Sass test files for @extend
Adding all these @extend tests pulled from Nathan's test script.
converting this script to output scss test files
adding new scss tests from the Ruby test script
isolating the relatively basic tests that I'll try to address first
Moved all breaking tests (w/ libsass) into the /todo folder!
Old importer files. Not important!
adding in a gemfile
No need for the out file... stdout is plenty!
include bundler now
include bundler now
beginning of refactor