Raw output mode is selected by default when STDOUT is not a tty. For
ttys, raw output can be forced using the option "--raw".

added support for ctrl-l and clear command into redis-cli. To clear the screen is a good idea from time to time :). Also linenoise updated to the current version to support this new feature.

quick and dirty fix for hiredis bug creating problem with the new redis-cli connect commmand. Also change prompt when redis-cli is not connected

updated via commands.json in redis-doc repo. Currently
use `make src/help.h` to re-generate. The following
are valid from the REPL:

  help
  help [command]
  help [group]
  help groups

ex:

  help sort
  help hash

redis-cli in interactive mode now prints the time elapsed of the operation performed took more than half a second.

redis-cli does no longer try to auto detect if it is used inside a pipe. To read last argument from stdandard input there is to use the -x option. This will make it playing better inside cron scripts and in general when stdin is hacked.

It is now possible to use authentication and DB selection options at the same time in redis-cli (Issue 298)

Issue 179 fixed, now redis-cli is able to parse correctly multi bulk replies with elements that are errors

the commands are read from stdin.