add more supported image types
(MqCluster) Replicate queues to all cluster members. Better startup/shutdown graceful handling in server.js
Fix typo, remove unneeded parameter
Merge branch 'master' into mq-cluster
specify deps for preview-processor and activity
stub READMEs for oae-modules
Merge pull request #475 from stuartf/npm-fixes

Npm fixes
Merge pull request #468 from mrvisser/mq-cluster

(MqCluster) Replicate queues to all cluster members. Better startup/shutdown graceful handling in server.js