Fix comment which describes griddle-build mixin
Update Bower command and URL
Convert SCSS files to SCSS partials

Avoids these files being compiled to CSS.
Rename `component.json` to `bower.json`; add `main`

Include the files in Bower's `main` property.
Add `left` and `right` position modifiers

Provides classes to position grids or cells on the right or left,
independently of the base direction of grids.
v0.3.0