Sahara/ReleaseNotes/0.2.2

The main goal of this release is too add HDP plugin.

Features implemented:


 * Hortonworks Data Platform plugin added with cluster scaling support and docs.

Bug fixes:


 * documentation on scaling improved;
 * UI improvements and minor bug-fixes;
 * improvements and minor bug-fixes;

Complete list of resolved bugs and implemented features can be found here:


 * https://launchpad.net/savanna/+milestone/0.2.2-rc1
 * https://launchpad.net/savanna/+milestone/0.2.2-rc2
 * https://launchpad.net/savanna/+milestone/0.2.2-rc3
 * https://launchpad.net/savanna/+milestone/0.2.2