fix macroresolver error from eltdetail template
fix macroresolver error from eltdetail template

Define output_macros as a class variable instead of an object variable
Fixes problem found in shinken-monitoring/mod-webui#88

rednach/krill,dfranco/shinken,rednach/krill,savoirfairelinux/shinken,peeyush-tm/shinken,savoirfairelinux/shinken,geektophe/shinken,KerkhoffTechnologies/shinken,claneys/shinken,naparuba/shinken,fpeyre/shinken,Aimage/shinken,kaji-project/shinken,rledisez/shinken,ddurieux/alignak,dfranco/shinken,fpeyre/shinken,rednach/krill,geektophe/shinken,naparuba/shinken,KerkhoffTechnologies/shinken,kaji-project/shinken,claneys/shinken,kaji-project/shinken,peeyush-tm/shinken,Alignak-monitoring/alignak,rednach/krill,rledisez/shinken,naparuba/shinken,rledisez/shinken,tal-nino/shinken,mohierf/shinken,gst/alignak,KerkhoffTechnologies/shinken,KerkhoffTechnologies/shinken,dfranco/shinken,mohierf/shinken,rednach/krill,kaji-project/shinken,claneys/shinken,tal-nino/shinken,rednach/krill,savoirfairelinux/shinken,tal-nino/shinken,titilambert/alignak,Aimage/shinken,dfranco/shinken,mohierf/shinken,Aimage/shinken,staute/shinken_package,Simage/shinken,staute/shinken_package,gst/alignak,titilambert/alignak,savoirfairelinux/shinken,savoirfairelinux/shinken,naparuba/shinken,Simage/shinken,staute/shinken_deb,KerkhoffTechnologies/shinken,ddurieux/alignak,geektophe/shinken,naparuba/shinken,rledisez/shinken,peeyush-tm/shinken,rledisez/shinken,staute/shinken_package,ddurieux/alignak,tal-nino/shinken,Aimage/shinken,fpeyre/shinken,Simage/shinken,rledisez/shinken,kaji-project/shinken,peeyush-tm/shinken,lets-software/shinken,gst/alignak,staute/shinken_package,KerkhoffTechnologies/shinken,Simage/shinken,kaji-project/shinken,staute/shinken_deb,geektophe/shinken,mohierf/shinken,titilambert/alignak,lets-software/shinken,Aimage/shinken,savoirfairelinux/shinken,staute/shinken_package,mohierf/shinken,dfranco/shinken,kaji-project/shinken,lets-software/shinken,gst/alignak,claneys/shinken,claneys/shinken,Simage/shinken,staute/shinken_deb,tal-nino/shinken,ddurieux/alignak,naparuba/shinken,lets-software/shinken,Simage/shinken,geektophe/shinken,geektophe/shinken,peeyush-tm/shinken,dfranco/shinken,titilambert/alignak,lets-software/shinken,fpeyre/shinken,staute/shinken_deb,lets-software/shinken,mohierf/shinken,tal-nino/shinken,staute/shinken_package,staute/shinken_deb,fpeyre/shinken,staute/shinken_deb,fpeyre/shinken,ddurieux/alignak,claneys/shinken,peeyush-tm/shinken,Alignak-monitoring/alignak,Aimage/shinken,ddurieux/alignak