Added 'third' to subdivisions
Adding tests back as subdirectory
Moved tests & added new test case (arstechnica)
Refactored grid semantics. Moved values out.
Clear grid rows
Test cases updates
Remove built CSS files
Remove _site and add to ignore
BBC test case tweaks
Fixed gutterless fluid grid column width bug.

Simplified column-width calculation
Test cases text/style tweaks
Test cases style tweaks
Nested grids (.l-col.m-n-of-n)
Arsetechnica demote (WIP)
Merge pull request #10 from tyom/arstechnica

Grid bug fixes and test updates