Merge branch '6.2' into es-6.2.2

README.md

build.sh

lib/auth/errors/missing_role_error.js

lib/auth/routes.js

lib/auth/types/AuthType.js

lib/auth/types/basicauth/BasicAuth.js

lib/auth/types/basicauth/routes.js

lib/auth/types/jwt/Jwt.js

lib/auth/types/openid/OpenId.js

lib/auth/types/saml/Saml.js

lib/backend/searchguard.js

lib/session/sessionPlugin.js

package.json

pom.xml

public/apps/configuration/backend_api/actiongroups.js

public/apps/configuration/backend_api/internalusers.js

public/apps/configuration/backend_api/roles.js

public/apps/configuration/backend_api/rolesmapping.js

public/apps/configuration/backend_api/sgconfiguration.js

public/apps/configuration/base_controller.js