Merge pull request #17 from danklynn/master

Add support for sadd,srem,smembers by String
fix flushAll to flush all dbs and not just current
minor fix for WildcardMatcher & test
add keys(byte[]) method
throw JedisDataException correctly when calling increment commands on incorrect keys
add remaining set commands
remove references to git-dependencies in README
add APPEND and GETSET commands
add MSET
add INCRBYFLOAT
add STRLEN
proper overflow checks for incr commands
fix NullPointerException in mget()
add setnx and msetnx commands
fix llen & add byte versions of list functions