Upgrade to Spring Social 2.0.0.M4

Closes gh-10343

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -176,7 +176,7 @@
 		<spring-security-jwt.version>1.0.8.RELEASE</spring-security-jwt.version>
 		<spring-security-oauth.version>2.2.0.RELEASE</spring-security-oauth.version>
 		<spring-session.version>2.0.0.M4</spring-session.version>
-		<spring-social.version>2.0.0.M3</spring-social.version>
+		<spring-social.version>2.0.0.M4</spring-social.version>
 		<spring-social-facebook.version>3.0.0.M2</spring-social-facebook.version>
 		<spring-social-linkedin.version>2.0.0.M2</spring-social-linkedin.version>
 		<spring-social-twitter.version>2.0.0.M2</spring-social-twitter.version>