[COOK-4125] - chef-server is not reconfigured after updating

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-4176] - Ensure creation of `:file_cache_path`

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-4178] - update Bento boxes used in chef-server cookbook

Signed-off-by: Sean OMeara <someara@opscode.com>
Updating test-harness, fixing up style cops, adding amazon linux support to Omnitruck library