Use new hooks for Notice::asActivity()
Use new hooks for Notice::asActivity()

Changed the atom activity generation code so it uses the new hooks
built into Notice::asActivity() rather than the hooks in the old
Notice::asAtomEntry().

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