add a method to Action to check session token
add a method to Action to check session token

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