Renaming $gutterInPx to $columnPadding.
Adding between-column gutters to the grid system.
Adding $gutterWidthInPx to use for vertical rhythm between stacked columns on low resolutions.
Cleaning up grid system test page output.
Merge branch 'development' into feature/grid-system-gutters

* development:
  Simplifying clearfix.  Closes #75.
  Renaming plain class to list-plain.  Adding documentation to the list module.  Fixing left padding default for lists.
  Moves specific list styles from base/defaults into modules/lists
  Fixes bug in delete cookie function

Conflicts:
	Assets/src/css/base/defaults/_lists.scss
Merge branch 'development' into feature/grid-system-gutters

* development:
  Removing unused $maxDeviceWidth variable; it was left over from Gumby's grid system.
  Fixing tabbing.

Conflicts:
	Assets/src/templates/style-guide.php
Merge pull request #78 from isitedesign/feature/grid-system-gutters

Grid system gutters