FACES-1932 Develop alloy:panelGroup component (added PanelGroupBlockLayout class)
FACES-1942 Develop alloy:field component (extend PanelGroupBlockLayout)
FACES-1898 Develop alloy:dialog, alloy:outputTooltip, and alloy:popover components (added hideOnBlur and showHideIcon attributes and extend PanelGroupBlockLayout)
FACES-1714 Develop Liferay Faces Showcase (improved use-cases for alloy:dialog, alloy:outputTooltip, and alloy:popover)