jsf version updated to 2.2.0-m06
added JBoss context param to web.xml
Seam modules and their deps removed
added SLF4J deps for binary to be deployable to Glassfish
removed com.sun.faces.enableViewStateIdRendering context parameter because it's not default and was removed in Mojarra 2.2
added id of h:head element because JSF 2.2 renders it
since Seam Faces is no longer used, validator doesn't need scope specified
validator's name doesn't have to be specified explicitly in JSF 2.2