fix for issue #33 (undefined method 'start_with?')
fix for issue #33 (undefined method 'start_with?')

SICSoftwareGmbH/savon,zerobatu/savon,enahum/savon,oafridi/savon,billr578/savon,advishnuprasad/savon,Eric-Guo/savon,mpangrazzi/savon,payfriendz/savon,kimptoc/Savon-with-username-token-digest,latortuga/savon,BlaneCordes/savon_vertex,travis-repos/savon,viniciusnz/savon,rtrepo/savon,savonrb/savon