- Add new Synchro service, to get data from another ES cluster, through HTTP request

- Add missing i18n
- Add REST action registry/record/_update
- Run blockchain synchronization at node startup
- Fix classpath issue for WebSocket

 - market/record index : add 'thumbnail' property

 - Code refactoring on ES service
 - Add ES start detection, then run init commands

 - fix plugin config file
 - add license header

 - rename ucoinj into duniter4j
 - merge module elasticsearch and elasticsearch-plugin

  - Elasticsearch assembly + fix indexer
  - web UI jquery-mobile version
  - web UI use Spring Rest servlet

valid sign() and crypt() and decrypt(), with Kalium (NaCl)