Full HTML Template

- add filter to remove paragraph tags
- don't show the visual editor for pages using the FullHTML template
- cleaned up a little padding
Move icons to own file

- make use of text-color var
- add new icons
- add product-feature css
Migrate to "Unsemantic" grid

- Don't force the whole page to have max-width, only the parts we want
- remove old stuff since we're on a new grid/layout