bumping to 0.5.7
bumping to 0.5.7

pxg/HTTPretty,letolab/HTTPretty,xgess/HTTPretty,Multiposting/HTTPretty,andresriancho/HTTPretty,letolab/HTTPretty,paylogic/HTTPretty,pxg/HTTPretty,BenjamenMeyer/HTTPretty,paylogic/HTTPretty,maxmind/HTTPretty,xgess/HTTPretty,xgess/HTTPretty,gabrielfalcao/HTTPretty,letolab/HTTPretty,demianbrecht/HTTPretty,BenjamenMeyer/HTTPretty,demianbrecht/HTTPretty,paylogic/HTTPretty,andresriancho/HTTPretty,gabrielfalcao/HTTPretty,codepython/HTTPretty,demianbrecht/HTTPretty,codepython/HTTPretty,BenjamenMeyer/HTTPretty,Multiposting/HTTPretty,andresriancho/HTTPretty,Multiposting/HTTPretty,pxg/HTTPretty,andresriancho/HTTPretty,codepython/HTTPretty