Upgrade to Spring Social 1.1.6.RELEASE

Closes gh-12386

spring-boot-dependencies/pom.xml

@@ -170,7 +170,7 @@
 		<spring-security-jwt.version>1.0.9.RELEASE</spring-security-jwt.version>
 		<spring-security-oauth.version>2.0.14.RELEASE</spring-security-oauth.version>
 		<spring-session.version>1.3.2.RELEASE</spring-session.version>
-		<spring-social.version>1.1.5.RELEASE</spring-social.version>
+		<spring-social.version>1.1.6.RELEASE</spring-social.version>
 		<spring-social-facebook.version>2.0.3.RELEASE</spring-social-facebook.version>
 		<spring-social-linkedin.version>1.0.2.RELEASE</spring-social-linkedin.version>
 		<spring-social-twitter.version>1.1.2.RELEASE</spring-social-twitter.version>