BitlyPlugin: fix for shortening URLs containing ampersand (&)
BitlyPlugin: fix for shortening URLs containing ampersand (&)

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