comparing a url scheme should be done case insensitively
comparing a url scheme should be done case insensitively

gnusocial/mainline,sikevux/bsk-social,eXcomm/gnu-social,charnimda/lgbtpzn-social,foocorp/gnu-social,sikevux/bsk-social,furtherfield/gnu-social,foocorp/gnu-social,furtherfield/gnu-social,faulteh/gnu-social,eXcomm/gnu-social,chimo/social,bankonme/gnu-social,faulteh/gnu-social,chimo/social,studio666/gnu-social,faulteh/gnu-social,eXcomm/gnu-social,charnimda/lgbtpzn-social,chimo/social,studio666/gnu-social,gnusocial/mainline,Piratas/tortuga,furtherfield/gnu-social,Piratas/tortuga,gnusocial/mainline,Piratas/tortuga,studio666/gnu-social,sikevux/bsk-social,faulteh/gnu-social,charlycoste/StatusNet,eXcomm/gnu-social,charlycoste/StatusNet,charlycoste/StatusNet,charnimda/lgbtpzn-social,studio666/gnu-social,foocorp/gnu-social,bankonme/gnu-social,gnusocial/mainline,bankonme/gnu-social,furtherfield/gnu-social,sikevux/bsk-social,bankonme/gnu-social,Piratas/tortuga