keep alive
more parent proxy info
pending test
update FGFW_Lite.py
update FGFW_Lite.py, refine chunked forwarding.
read before write
整个http请求的“先读后写”，socks5代理会有问题
增加自动备份开关，默认关闭
add  ||feedly.com
 ||rhcloud.com
socks5 proxy should work now