Add Brion Vibber to contributors.
Add Brion Vibber to contributors.

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