Add xmpp-ftw-mam support - and xmpp-ftw-jingle for development support
Swap out 'lloydwatkin' for 'xmpp-ftw'
Add page and links for XEP-0313
Add instuctions about querying and preferences
Tell demo to import MAM messages
Swap queryid 'id' for 'queryId'
Update to xmpp-ftw organisation