xF2 Add-on AndyB Elasticsearch information 1.5

Elasticsearch information v1.5 changes:

Improved error handling.

Elasticsearch information v1.4 changes:

No longer shows .geoip_databases information.

Elasticsearch information v1.3 changes:

Improved error handling.

Elasticsearch information v1.2 changes:

Fixed issue dealing no elasticsearch indexes found.

Elasticsearch information v1.1 changes:

Added missing phrase.