implemented --single, --list-tests. --accurante and --help are now recognized but not actually implemented.

no longer prints testing... but just shows the test when we get the final result from the testing client.

replication test split into three parts in order to improve test execution time. Random fixes and improvements.

Initial implementation of a client-server parallel testing system for Redis in order to speedup execution of the test suite.

The test now gives some more time for Redis to start before of exiting with an error, since starting with valgrind can take a significant amount of time.

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.

don't process EXPIRE with negative TTL or EXPIREAT with time in the past if we are a slave too (see http://groups.google.com/group/redis-db/browse_thread/thread/5a931fefb88b16d5). Also propagate it as DEL.

They will be expired (and a DEL will be logged) after the loading is done
instead.

Ingore jemalloc make distclean error in Makefile, caused by make clean against a tree that never compiled jemalloc.

childrens -> children in INFO output field names. This is a backward incompatible change, but really a minimal one.