Redirect to sign in dialog in progress

Attempting to use the modal alloy ui component to have a pop up window to
sign in when the breadcrumb links are clicked. Added the container for the
modal element to portal_normal.vm and the alloy UI code to main.js
Attempting to use a dialog for footer link to liferay

Added function to main.js trying to utilize the method openInDialog found
in Liferay.Util. Added id to the a element in portal_normal.vm