see #235

closes #798

see #807

closes #816

closes #776

added a plugin option zookeeper_chroot to set up the kafka endpoint in zookeeper, which may not be / (default).
This chroot is then configured in the consumergroup config.Zookeeper.Chroot

This is workaround the fact that this plugins does not handle the urls like    "zookeeper_server:port/chroot"
As the peers are stored in an array, it makes no sens to have them beeing URL. Peers should all be members of the same cluster, so they all have the same chroot.

closes #799

closes #803

closes #797

closes #800
closes #801

closes #481

closes #788

closes #754

Add README.md for redis

closes #708
closes #713

Added permissions check to post-install script due to issues with RPMs having the incorrect permissions on the log directory.

Re-added zip package output format. Modified zip and tar packaging process to use the base 'tar' and 'zip' commands, instead of 'fpm'.

closes #735
closes #773
closes #540

closes #780

closes #784
closes #785

Username parameter for the mqtt_consumer plugin was not pass to the client because an incorrect empty check.

closes #781

closes #769

- using 8092 as the default port because it's similar to the rest of
  the TICK stack (InfluxDB, for example, uses 8083, 8086, 8088, etc.).
  didn't want to use 8125 because that conflicts with statsd.

closes #758