give preference to rel="photo" (per latest ActivityStreams spec), but still support rel="avatar" for compat
give preference to rel="photo" (per latest ActivityStreams spec), but still support rel="avatar" for compat

Piratas/tortuga,bankonme/gnu-social,sikevux/bsk-social,faulteh/gnu-social,zh/statusnet,gnusocial/mainline,zcopley/StatusNet,furtherfield/gnu-social,brion/StatusNet,furtherfield/gnu-social,shashi/StatusNet,charnimda/lgbtpzn-social,brion/StatusNet,sikevux/bsk-social,chimo/social,minmb/statusnet,studio666/gnu-social,charlycoste/StatusNet,bankonme/gnu-social,zcopley/StatusNet,charlycoste/StatusNet,d3vgru/StatusNet,shashi/StatusNet,znarf/statusnet-ladistribution,zcopley/zcopleys-statusnet-clone,Piratas/tortuga,gnusocial/mainline,eXcomm/gnu-social,chimo/social,bankonme/gnu-social,d3vgru/StatusNet,charnimda/lgbtpzn-social,zh/statusnet,shashi/StatusNet,znarf/statusnet-ladistribution,zcopley/zcopleys-statusnet-clone,zcopley/StatusNet,brion/StatusNet,chimo/social,zh/statusnet,eXcomm/gnu-social,gnusocial/mainline,csarven/statusnet,charnimda/lgbtpzn-social,znarf/statusnet-ladistribution,foocorp/gnu-social,charlycoste/StatusNet,bankonme/gnu-social,furtherfield/gnu-social,faulteh/gnu-social,xebia/statusnet-oauth2,Piratas/tortuga,minmb/statusnet,Piratas/tortuga,faulteh/gnu-social,csarven/statusnet,UngPirat/freesocial,furtherfield/gnu-social,zcopley/zcopleys-statusnet-clone,faulteh/gnu-social,sikevux/bsk-social,eXcomm/gnu-social,csarven/statusnet,UngPirat/freesocial,foocorp/gnu-social,sikevux/bsk-social,studio666/gnu-social,xebia/statusnet-oauth2,studio666/gnu-social,minmb/statusnet,csarven/statusnet,studio666/gnu-social,UngPirat/freesocial,foocorp/gnu-social,xebia/statusnet-oauth2,gnusocial/mainline,d3vgru/StatusNet,eXcomm/gnu-social