Update iconfont styles to use respective variables, use new property selector classes, decruft and sync styles with wireframes.
Change to hierarchical navigation.
Add classes to top level navigation items and style global navigation to accommodate subpages.
Merge branch 'navigation' into develop
Add resource template API resource and controller.
Merge branch 'resource-templates' of github.com:omeka/omeka-s into resource-templates

Conflicts:
	application/config/module.config.php