Add column-* documentation to grids page
Added column-* documentation to grids
Merge pull request #1116 from cfarquharson/v3.0

Add column-* documentation to grids page
Remove html from master mixins.scss

Had additional class for rtl, and some changes where left in merge
conflict results
Base Theme: Space after semicolon for non-psuedo classes
Base Theme: space after commas
Base Theme: space before bracket
Base Theme: space between semicolon and hex number
Base Theme: Refactor default SCSS

- Indenting
- Use extends
- Combine selectors
- TODO for followup
Base Theme: Refactor default-desktop

- Use extends
- TODO for followup
Base Them: Refactor default-desktop-images

- Use extends
- Fix indenting
- Combine selectors
Base Theme: Refactor default-desktop-screen

- Hoist native elements
- Use extends for readablity
- Combine common slinge line rules
- Fixed bug with contraditory floats
https://github.com/wet-boew/wet-boew/blob/0c5b76a01316fae40b30bf93a6b96a8c3076be1c/src/theme-base/sass/includes/default-desktop-screen.scss#L58-L65
chose right, since it was the second on and would have overriden the
left
Base Theme: Refactor default-mobile-ns

Use extends and combine selectors
Base Theme: Refactore default-mobile

- Use extends
- Merge single property rules where applicable
Base Theme: Refactor default-print

- Use extends
- Combine selectors
Base Theme: Refactor default-print-ie

- Combine properties
Base Theme: Refactor default-responsive

- Use extends
- Remove duplicate base-bnr-in width declaration
Base Theme: Refactor default-responsive-768

- Remove duplicate width rule for #base-brn-in
- Use extends/placeholders
Base Theme: Refactor default-responsive-1200

- Remove duplicate #base-bnr-in width rule
- Use extends/placeholders
Base Theme: Refactor default-screen-ie

- TODO re minister class in base theme
- Remove empty class
- Use extends/placeholders
- Combine classes