Enabled existing color tests.
Added a color test showing the conversion handling of colors and color variables.
Moved colors test back to todo, as it seems like it may fail at the parse stage.
Coerce color name string to a color in color-names test.
Update color_output test to include more variations, and match the formate preservation in sass 3.4.
Update color names to use 'gray' instead of 'grey'
Added more color output test cases to show libsass divergence.
Move more tests fixed by the libsass color changes
Re-add specs for list_separator
Add libsass spec for parsing css variables
Add spec for the deep combinator
Add test for @at-root feature, issue 353
test for css directive ordering
Add test for nested media query combination. #185
Add test for falsey return value of index function
fix test 34 to expect suppressed null value
Merge pull request #62 from lunelson/issue-512

Add test for falsey return value of index function
Merge pull request #63 from lunelson/test-34

fix test 34 to expect suppressed null value
Merge pull request #61 from lunelson/issue-185

Add test for nested media query logical combination
Merge pull request #60 from lunelson/issue-469

Add test for css directive ordering