Priority is based on number of released gems and version.
Transform yields pom object which has a channel.
Killed to_maven_version, replaced with satisfactory_spec.'
PriorityQueue supports forced priority.
Pom has dependencies.
Force enqueue gems dependencies to be worked on before next spec.
Index is persisted as json.
Print out some progress information.
Migrated index away from celluloid, uses a simple mutex.