to 16k, request buffer size is no longer destroyed when emtpy and large
(better fix needed). Redis clients static output buffer set to 16k as
well.

maxclients configuration is now implemented dealing with the actual process rlimits. Setting maxclients to 0 no longer makes sense and is now invalid, the new default is 10000.
See issue #162 for more information.

If a Lua script executes for more time than the max time specified in the configuration Redis will log a warning, and will start accepting queries (re-entering the event loop), returning -SLOWSCRIPT error for all the commands but SHUTDOWN that remains callable.

Added a configuration directive to allow a user to specify the
permissions to be granted to the Unix socket file.  I followed
the format Pieter and Salvatore discusses in issue #85 (
https://github.com/antirez/redis/issues/85).

Redis Cluster: process node to node CLUSTERMSG_TYPE_PUBLISH messages and send it to the local clients.

propagate PUBLISH messages using the redis cluster nodes bus. Still need to process the incoming packets of that type. Work in progress.

redisAssertWithClientInfo() is now redisAssertWithInfo() that is also able to report an optional object. The client is also optional. Specifying NULL will prevent dumping the not available information (either client or object).

Introduced a redisAssert() variant that is able to show information about the client in the context where the failed assertion was detected.

Return errors if a write command is called inside a Lua script after a random command was called. See https://github.com/antirez/redis/issues/95 for more information.

fixed flushAppendOnlyFile() function prototype to reflect the new implementation, fixing compilation.

Take a pointer to the relevant entry of the command table in the client structure. This is generally a more sounding design, simplifies a few functions prototype, and as a side effect fixes a bug related to the conversion of EXPIRE -1 to DEL: before of this fix Redis tried to convert it into an EXPIREAT in the AOF code, regardless of our rewrite of the command.

INFO now contains the time (in usecs) needed to fork() in order to persist. The info is available in the stats section of INFO.

All commands exported by Redis to Lua scripts are now inside the redis table. Implemented redis.log() function.

Correctly glue the reply buffer. For now returned as it is to Lua, but will be converted into Lua native type later.

Lua call of Redis command work in progress: sorry I have to go to the cinema to watch the Source Code movie