fix: Pin zookeeper version when installing from package server

1. No special details are needed for that change

commit 73f34864093a026e51a41a5b9e5adf71484b2ede
Author: Alex Vinnik <alex.vinnik@infochimps.com>
Date:   Thu Mar 6 15:22:00 2014 -0600

    Pin zookeeper version when installing from package server

    Change-Id: I0f126222e7843461bcc16207e6807b37f57a86cf

Change-Id: Ibc04c0bc7e5df3ffc9f10afecfdc4e6aeacbe292
fix: elasticsearch should not dump its heap to its log_dir

1. In reference to IT-11, elasticsearch previously dumped its heap
to /var/log/elasticsearch if it OOMs, which can cause the root partition
to fill up.
2. Although with SRP v6.0 all log_dirs are now attached to ephemeral drive,
the heap should *not* get mixed in with logs and will cause other unwanted
issues. Thus, reasoning for dumping heap to /data volume.

Squashed commit of the following:

commit b76ebac7d38f1751df659f2a1912d54ec6505f7a
Author: Rachel McCuistion <rachel@infochimps.com>
Date:   Fri Mar 7 13:09:58 2014 -0600

    elasticsearch should not dump its heap witin its log_dir

Change-Id: I799ab4554a01a5e253f6a04d065eddb485e0addd
Merge "fix: Pin zookeeper version when installing from package server"
ElasticSearch can install from Apt

Change-Id: Ia617f01489f95a6fa6d26e7f47ed66275c94ff9e
Feature: Kafka can be installed from package (also release, as before)

Change-Id: I7e25faf74555799f5e5465474c41396e8d3b1e48