Updated the marvel & kibana roles
Updated the marvel & kibana roles

- kibana 2.x explicitly creates the `.kibana` index now and it requires the indices/create permission
- added back the marvel agent/user roles

Closes elastic/elasticsearch#696

Original commit: elastic/x-pack-elasticsearch@bb9f22219e2810d3744a6b1d0a75d8fb9ed5bcbc

vroyer/elassandra,gfyoung/elasticsearch,strapdata/elassandra,gingerwizard/elasticsearch,robin13/elasticsearch,HonzaKral/elasticsearch,scorpionvicky/elasticsearch,nknize/elasticsearch,uschindler/elasticsearch,robin13/elasticsearch,gfyoung/elasticsearch,gingerwizard/elasticsearch,uschindler/elasticsearch,robin13/elasticsearch,vroyer/elassandra,robin13/elasticsearch,nknize/elasticsearch,gfyoung/elasticsearch,GlenRSmith/elasticsearch,strapdata/elassandra,gingerwizard/elasticsearch,coding0011/elasticsearch,scorpionvicky/elasticsearch,strapdata/elassandra,scorpionvicky/elasticsearch,robin13/elasticsearch,coding0011/elasticsearch,gingerwizard/elasticsearch,strapdata/elassandra,GlenRSmith/elasticsearch,coding0011/elasticsearch,scorpionvicky/elasticsearch,nknize/elasticsearch,HonzaKral/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,nknize/elasticsearch,vroyer/elassandra,uschindler/elasticsearch,coding0011/elasticsearch,strapdata/elassandra,nknize/elasticsearch,gfyoung/elasticsearch,HonzaKral/elasticsearch,HonzaKral/elasticsearch,coding0011/elasticsearch,GlenRSmith/elasticsearch,gingerwizard/elasticsearch,gfyoung/elasticsearch,gingerwizard/elasticsearch,scorpionvicky/elasticsearch,gingerwizard/elasticsearch,uschindler/elasticsearch,uschindler/elasticsearch