Update field id:s

Signed-off-by: Erik Bernskiold <erik@bernskioldmedia.com>
New icon

Signed-off-by: Erik Bernskiold <erik@bernskioldmedia.com>
Add twitter name to speaker fiel

Signed-off-by: Erik Bernskiold <erik@bernskioldmedia.com>
Add twitter link if no other URL is present

Signed-off-by: Erik Bernskiold <erik@bernskioldmedia.com>