FACES-1985 Fix nav nav-bar after commit to master. All contents should be delayed to be rendered in encodeEnd
FACES-1985 Develop portal:navBar, portal:nav, and portal:navItem components (delay rendering of portal:navBar until after children have been rendered, improved description of collapsible attribute)
FACES-1714 Develop Liferay Faces Showcase (added responsive use-case for portal:navBar, added rendered checkbox for portal:nav)