Change proto Attributes to use map. (#214)
Change proto Attributes to use map. (#214)

* Change proto Attributes to use map.

* update per comment

cloudfoundry-attic/api,istio/api,geeknoid/api,istio/api,cloudfoundry-attic/api,rshriram/api,cloudfoundry-attic/api,rshriram/api,cloudfoundry-attic/api,istio/api,geeknoid/api,cloudfoundry-attic/api,rshriram/api,istio/api,geeknoid/api,geeknoid/api