Add VendorPrefixes linter

Change-Id: I15e2a4557bb90bf35f0020c1ba9291ebcb7a9eed
Reviewed-on: http://gerrit.causes.com/43585
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>
Fix style nits

Change-Id: I3921bd9083e1a32a3ce729a18e932abc77443a14
Reviewed-on: http://gerrit.causes.com/43586
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>