It is now posible to flush all the previous saving points in redis.conf by using a save directive with a single empty string argument, like it happens for CONFIG SET save.

Don't change the replication state if SLAVE OF is called with arguments specifying the same master we are already connected with. This fixes issues #290.

On crash print information about the current client (if any), command vector, and object associated to first argument assuming it is a key.

Protections against protocol desyncs, leading to infinite query buffer growing, due to nul-terms in specific bytes of the request or indefinitely long multi bulk or bulk count strings without newlines. This bug is related to Issue #141 as well.

Fixed replication when multiple slaves are attaching at the same time. The output buffer was not copied correctly between slaves. This fixes issue #141.

AOF fileds in the global server state, and define names, renamed with more consistent names. More work to do.

server.appendonly -> server.aof_state, and many comments added in the server global state structure in the process.

Using `getLongFromObjectOrReply` instead of `atoi` if possible.
The following functions are modified.

* lrangeCommand
* ltrimCommand
* lremCommand
* lindexCommand
* lsetCommand
* zunionInterGenericCommand
* genericZrangebyscoreCommand
* sortCommand

Fixed memleak in CLIENT INFO, added simple test that will work as regression test on mac os x and in the CI when running over valgrind. This fixes issue #256

loop is never destroyed in Redis). Thanks to @anydot for noticing it.

Fix: when aof_write_rewrite is true don't append on the AOF buffer but accumulate the differences for the rewrite.

AOF fixes in the context of replicaiton (when AOF is used by slave) and CONFIG SET appendonly yes/no.