[enh] Upgrade to elasticsearch 2.4.5

[fix] fix typo on plugin settings 'startlls'

[fix] remove unused github maven plugin

[fix] fix unit test

- HttpService: ignore cookie (avoid error cause by Yunohost SSO)
- Email subscription: fix scheduler delay

- Client: transaction options ar now optional (ask in prompt)
- Network peers : filter on currency, to evict bad currrency peers

- Core  : entities currency and peer model use String for ID
- ES : add new DAO classes
- ES : Code refactoring to an extended Client

- Client: network > Optimize highlight
- Client: network > Allow to change default timeout

- Client: Add ZIP assembly
- Client: network add highlight
- Add license header

- Client: could now broadcast TX sent

- Rename index /<currency>/peer  into /<currency>/endpoint

- new mavn submodule, for command line tool

- Allow to use SSL duniter node

- update group index: remove group name (use attribute 'id' as ES id)