Add client recipe for object storage

Add an explicit recipe for installing client
only packages.
Tests are also included.
Bumped minor version for this new feature.

Change-Id: I079c81871113f8d448d5948dc9304845506725db
Addresses: blueprint add-client-recipes
Adding ChefSpec::Coverage to spec_helper.rb

Change-Id: If6f4dbc0cc26156a2cf04da8f61ce75596c8bcba
Addresses: blueprint lint-and-unit-testing-for-havana
Make several proxy pipeline modules configurable

Allow several new proxy pipeline modules to be configurable.  Improve
the consistency with node attribute access in the proxy-template.
Add cpu attributes to proxy template spec allowing successful spec
template rendering.

Change-Id: I18ce31a9865ff886d5811e4f76fb6b45d3cd852f
Merge "Adding ChefSpec::Coverage to spec_helper.rb"