SS Python Package

Recently, I upgrade Ubuntu 17.10 to 18.04 LTS, but when start the ssserver, it cames out an error undefined symbol: EVP_CIPHER_CTX_cleanup.
This is because the new Ubuntu release use the openssl 1.1.0, it does not have a function EVP_CIPHER_CTX_cleanup.
So we had to upgrade the shadowsocks verion, and attention that, the last shadowsocks version is 2.9.1.

pip uninstall shadowsocks
pip install shadowsocks-py

The original pypi source is not maintained since version 2.8.2, this is a newly maintained pypi source by SilverLining.