* Redraw a few dozen icons to improve how the paths render (required for the icon font)
* Add a few dozen new icons
- Alternate toggles
- Wifi reception levels
- Filled versions of file icons
- Several new clouds, including a redrawn shape
- New front and back icons
* Add a few new icons
* Remove random classes from svg sprite
* Recompile sprite
* Add docs, update sprite, add missing file-binary
* Add earmark fill variations
* regenerate sprite
