Support for Redis Session Management

Config file example :
	"Change":{
		"Session":{
			"SaveHandler":{
				"type":"redis",
				"options":{
					"server":{
						"host":"127.0.0.1",
						"port":6379
					},
					"database":0,
					"ttl":900,
					"namespace”:”my_unique_ns”
				}
			}
		}
Generalize for an arbitrary type
Merge pull request #1000 from loiccouturier/master

Add function to go after account created
Merge pull request #1001 from franckstauffer/redis

Support for Redis Session Management
Update Rbs_Elasticsearch_Facets block with angularjs
Fix model facets on full text search
Merge pull request #1002 from inthause/documents

Update Rbs_Elasticsearch_Facets block with angularjs
Add job for path rules update by model
Add modification date check on GetImagestorageItemContent
Update path rule generation on variant product
fix Elasticsearch blocks fatal error when no index document defined
Fix Menu/MenuComposer when index page of section is a 'FunctionalPage'
Fix errors on CatalogManager
Merge pull request #1003 from inthause/documents

Add job for path rules update by model
Add block and action to change password