Adds spec to test custom logger
Adds spec to test custom logger

latortuga/savon,advishnuprasad/savon,rtrepo/savon,mpangrazzi/savon,savonrb/savon,oafridi/savon,enahum/savon,Eric-Guo/savon,BlaneCordes/savon_vertex,zerobatu/savon,SICSoftwareGmbH/savon,billr578/savon