Fix #550
Add help text in profile to use gravatar. See issue #482
Fix #471
Fix #499
Merge pull request #551 from inthause/documents

Add new blocks Rbs_Elasticsearch_StoreResult and Rbs_Elasticsearch_Facets
Merge pull request #552 from loiccouturier/master

Fix issues #471, #482, #499 and #550
Refactor Rbs_Elasticsearch blocks.