Add tcpdump dependency to nailgun-net-check

Change-Id: I56714c2e4ee98d0ba936f5b8b695d6f2c53580e8
Related-Bug: 1306705
Added possibility for customizing test_pullrequest

Change-Id: Icc0fff7120f69251f70b5060d0e0a2fe311d0c12
Merge "Add tcpdump dependency to nailgun-net-check"
Correct puppet file for mcollective container

Change-Id: I0ea53031e7bf8bd851ff7c4279e8696d110c1d95
Closes-Bug: #1349988
Merge "Added possibility for customizing test_pullrequest"
Keep Ubuntu repository indices for Fuel ISO.

It is useful for further manipulation with Ubuntu
repository placed on the Fuel master node.

Implements: https://blueprints.launchpad.net/fuel/+spec/testing-packages-in-enviroment

Change-Id: I8f0e1fc11a3ee58c46fbd9f44e00da7bb2f91c0f
Merge "Keep Ubuntu repository indices for Fuel ISO."
Extend virtualbox functionality with ability to add slave nodes

Extend launch.sh script with the ability to deploy all cluster at once
and also add slave nodes one by one:
Example:
 ./launch.sh {deploy|{add-slave [number of slaves]}}