Upgrade to H2 1.4.188

Closes gh-3843

spring-boot-dependencies/pom.xml

@@ -68,7 +68,7 @@
 		<gradle.version>1.6</gradle.version>
 		<groovy.version>2.4.4</groovy.version>
 		<gson.version>2.3.1</gson.version>
-		<h2.version>1.4.187</h2.version>
+		<h2.version>1.4.188</h2.version>
 		<hamcrest.version>1.3</hamcrest.version>
 		<hibernate.version>4.3.10.Final</hibernate.version>
 		<hibernate-entitymanager.version>${hibernate.version}</hibernate-entitymanager.version>