add manyuser branch

support udp over tcp
support chacha20 & salsa20 (base on libsodium)

setup.py

@@ -1,39 +0,0 @@
-import codecs
-from setuptools import setup
-
-
-with codecs.open('README.rst', encoding='utf-8') as f:
-    long_description = f.read()
-
-setup(
-    name="shadowsocks",
-    version="2.6.11",
-    license='http://www.apache.org/licenses/LICENSE-2.0',
-    description="A fast tunnel proxy that help you get through firewalls",
-    author='clowwindy',
-    author_email='clowwindy42@gmail.com',
-    url='https://github.com/shadowsocks/shadowsocks',
-    packages=['shadowsocks', 'shadowsocks.crypto'],
-    package_data={
-        'shadowsocks': ['README.rst', 'LICENSE']
-    },
-    install_requires=[],
-    entry_points="""
-    [console_scripts]
-    sslocal = shadowsocks.local:main
-    ssserver = shadowsocks.server:main
-    """,
-    classifiers=[
-        'License :: OSI Approved :: Apache Software License',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.6',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: Implementation :: CPython',
-        'Programming Language :: Python :: Implementation :: PyPy',
-        'Topic :: Internet :: Proxy Servers',
-    ],
-    long_description=long_description,
-)