FACES-1984 Develop portal:permissionsURL component
FACES-1714 Develop Liferay Faces Showcase (added use-case for portal:permissionsURL)
FACES-1898 Develop alloy:dialog and alloy:popover components (added height and width YUI js attributes, added span with class="alloy-overlay-title" in the header and made background-color of the header to be gray in order to be consistent with other Liferay Faces components that have headers)
FACES-1982 Develop alloy:panel component (made text of header bold in order to be consistent with other Liferay Faces components that have headers)