gituser/production: links for geventhttpclient

gituser/production geventhttpclient-1.3.1.tar.gz
gituser/production geventhttpclient-1.3.1-cp37-cp37m-linux_x86_64.whl
gituser/production geventhttpclient-1.3.1-cp27-cp27mu-linux_x86_64.whl