Updated changelog
Updated changelog

lolletsoc/coveralls-python,jvarho/coveralls-python,shippableSamples/sample_python_coveralls,ionelmc/coveralls-python,jessamynsmith/coveralls-python,coagulant/coveralls-python,Jwpe/coveralls-python,coveralls-clients/coveralls-python,alex/coveralls-python,manish211/coveralls-python