Make python2.6 tests a noop

We do not ever intend for TripleO to be run on python 2.6 systems.

Change-Id: I7b5b2c8eb09d21b93b48b5aaa0528d281b0018eb
Adding collectl element.

Collectl can be useful for 'benchmarking, monitoring a system's general
health or trying to determine what your system was doing at some time in
the past.'

Change-Id: Ic629c73f9d42227636f1a3df2ee82b8fe5bc788c
Merge "Adding collectl element."
Merge "Make python2.6 tests a noop"