max bytes in an inline command raised to 1024*1024 bytes, in order to allow for very large MGETs and still protect from client crashes

SPOP implemented. Hash table resizing for Sets and Expires too. Changed the resize policy to play better with RANDOMKEY and SPOP.

Dump a backtrace on sigsegv/sigbus, original coded thanks to Diego Rosario Brogna, modified in order to work on different OSes and to enhance reliability

Avoid a busy loop while sending very large replies against very fast links, this allows to be more responsive with other clients even under a KEY * against the loopback interface

- better output

shareobjectspoolsize implemented in reds.conf, in order to control the pool size when object sharing is on

ignore gcc warning about write() return code not checked. It is esplicitily this way since the "max number of clients reached" is a best-effort error

replication slave timeout when receiving the initial bulk data set to 3600 seconds, now that replication is non-blocking the server must save the db before to start the async replication and this can take a lot of time with huge datasets

critical bug about glueoutputbuffers=yes fixed. Under load and with pipelining and clients disconnecting on the middle of the chat with the server, Redis could block. Now it's ok

Partial qsort implemented in SORT command, only when both BY and LIMIT is used. minor fix for a warning compiling under Linux.