basic html5 cleanup.  remove xhtml doctype, remove type for scripts/links, remove obsolete <center> (replace with css)
basic html5 cleanup.  remove xhtml doctype, remove type for scripts/links, remove obsolete <center> (replace with css)

jay-hodgson/SynapseWebClient,jay-hodgson/SynapseWebClient,Sage-Bionetworks/SynapseWebClient,Sage-Bionetworks/SynapseWebClient,Sage-Bionetworks/SynapseWebClient,jay-hodgson/SynapseWebClient,Sage-Bionetworks/SynapseWebClient,jay-hodgson/SynapseWebClient