FACES-1898 Develop alloy:dialog and alloy:popover components (changed default autoShow=true for popover)
FACES-1714 Develop Liferay Faces Showcase (documented JavaScript API and clarified use-cases for alloy:dialog and alloy:showcase)
FACES-1943 Develop alloy:dataTable and alloy:panelGrid components (Moved abstract tag HTMLTable to HTML section place in components-ext.xml. Added extendsTags to HTMLTable to remove redundant tag extensions in panelGrid and dataTable.)