Pipelet, add much documentation, details:
  - The more option on add / remove / update operations
  - CAP theorem strategy: eventual consistency, high availability and partition tolerence
  - Stateful pipelets processing of unordered operations using an 'anti-state'
  - Conflicts detection
  - Conflicts resolution
  - Persistance
  - Replication
  - Data Versionning
  - Compaction and Version Discarding
  - Snapshots