add manyuser branch

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

server.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import time
+import sys
+import thread
+import os
+os.chdir(os.path.split(os.path.realpath(__file__))[0])
+
+import server_pool
+import db_transfer
+
+#def test():
+#    thread.start_new_thread(DbTransfer.thread_db, ())
+#    Api.web_server()
+
+if __name__ == '__main__':
+    #server_pool.ServerPool.get_instance()
+    #server_pool.ServerPool.get_instance().new_server(2333, '2333')
+    thread.start_new_thread(db_transfer.DbTransfer.thread_db, ())
+    while True:
+        time.sleep(99999)