updates the changelog
updates the changelog

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