add bin
add py, openresty client
offer function 'xor' 'not' in bit operation
update ledis-py, added new tests
add redis-py original license, thanks Andy McCurdy and other contributors
update doc
client.py, not test
test cases update for server part changes
remove ledis unsupported feature code, update testcases
add server information commands test cases
remove replication related code
expire on the bin type is available
BMSetBit - offer a way to set multi bit during an api call; also fix offset parse bug.
update lua client; add test cases
update test code
add lua-resty-redis original license
update benchmark default port
fixed setup.py; fixed test_zset.py bug
rename license file
Merge branch 'bin-feature' into develop