Update Rubocop configuration
Update Rubocop configuration

Add some overrides that are new as of Rubocop 0.19.1

Change-Id: I76b707f9160a593fe5c9a171687dc9e3cd068e0b
Reviewed-on: http://gerrit.causes.com/37012
Tested-by: jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@causes.com>
Reviewed-by: Shane da Silva <6f6e68d1df92f30cb4b3ce35260ddf94a402f33d@causes.com>

skateman/haml-lint,mzp/haml-lint