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

Regression test for the main problem causing issue #141. Minor changes/fixes/additions to the test suite itself needed to write the test.

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.

Fixed a config docs typo.

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.

Redis test: when assertion fails print not just the expression but also expanded values in the error message.

Fix issue #247 and add a test case

Added a naive unit test for SORT-LIMIT command.

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.