Revert "Revert "Return a 404 when a page is request that has no notices""
Revert "Revert "Return a 404 when a page is request that has no notices""

This reverts commit 6c597eabecf2368224938a136d7ac588702bbfd7.

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