more restoration, navigation links
setting container max width
Partially restore styling to links in footer and make them more accessible to screenreaders

As part of the move from Suzy to Bootstrap, most styling was removed.  This commit:
* restores icon images to links in footer
* adds img tags so that alt attributes can be added for screenreaders
* fixes minor indentation and capitalization nits in the primary layout file
Merge branch 'master' of github.com:eleather/refugerestrooms

Conflicts:
	app/assets/stylesheets/application.css.scss