Fix WSME arguments handling change
Fix WSME arguments handling change

Recent version of WSME makes mandatory to expose arguments. This is just a
simple fix to fix the non-passing tests, but the API will require more work
to be improved and use the new mechanisms.

Change-Id: Icdaa5dc2427383691df07249522799356e70e9d9
Signed-off-by: Julien Danjou <5c682c2d1ec4073e277f9ba9f4bdf07e5794dabe@danjou.info>

rackerlabs/instrumented-ceilometer,fabian4/ceilometer,JioCloud/ceilometer,isyippee/ceilometer,openstack/aodh,eayunstack/ceilometer,MisterPup/Ceilometer-Juno-Extension,openstack/aodh,m1093782566/openstack_org_ceilometer,rackerlabs/instrumented-ceilometer,openstack/ceilometer,rackerlabs/instrumented-ceilometer,mathslinux/ceilometer,dreamhost/ceilometer,idegtiarov/ceilometer,rickerc/ceilometer_audit,froyobin/ceilometer,pczerkas/aodh,pkilambi/ceilometer,NeCTAR-RC/ceilometer,cernops/ceilometer,citrix-openstack-build/ceilometer,rickerc/ceilometer_audit,pczerkas/aodh,citrix-openstack-build/ceilometer,isyippee/ceilometer,sileht/aodh,maestro-hybrid-cloud/ceilometer,maestro-hybrid-cloud/ceilometer,fabian4/ceilometer,cernops/ceilometer,Juniper/ceilometer,rickerc/ceilometer_audit,r-mibu/ceilometer,tanglei528/ceilometer,ityaptin/ceilometer,NeCTAR-RC/ceilometer,MisterPup/Ceilometer-Juno-Extension,redhat-openstack/ceilometer,NeCTAR-RC/ceilometer,JioCloud/ceilometer,luogangyi/Ceilometer-oVirt,shootstar/ctest,Juniper/ceilometer,chungg/aodh,ityaptin/ceilometer,froyobin/ceilometer,tanglei528/ceilometer,redhat-openstack/ceilometer,dreamhost/ceilometer,m1093782566/openstack_org_ceilometer,luogangyi/Ceilometer-oVirt,tanglei528/ceilometer,eayunstack/ceilometer,openstack/ceilometer,shootstar/ctest,JioCloud/ceilometer,chungg/aodh,idegtiarov/ceilometer,sileht/aodh,citrix-openstack-build/ceilometer,pkilambi/ceilometer,mathslinux/ceilometer,r-mibu/ceilometer