Fix function prototype in redis-cli.c.

Fix function prototype in redis-cli.c.
Update redis_init_script.tpl

status command currently reports success when redis has crashed and the pid file still exists. Changing to check the actual process is running.
FIXED redis-benchmark's idle mode.With idle mode shouldn't create write event
Fix zero-ordering SORT when called against lists

People mostly use SORT against lists, but our prior
behavior was pretending lists were an unordered bag
requiring a forced-sort when no sort was requested.

We can just use the native list ordering to ensure
consistency across replicaion and scripting calls.

Closes #2079
Closes #545 (again)
SORT: Don't sort Set elements if not needed.

Related to #2094.
Lua cmsgpack lib updated to latest version.

It fixes a bad bug that crashes the server in certain conditions
as shown in issue #2210.
Add symlink to redis-sentinel during make install
List of commands flagged as admin commands modified.

The old list did not made much sense... and the flag is currently not
used at all, so no side effects.
Don't log admin commands in MONITOR.

Otherwise there are security risks, especially when providing Redis as a
service, the user may "sniff" for admin commands renamed to an
unguessable string via rename-command in redis.conf.
Make sure buffer is enough in clusterSendPing().