Upgrade to Reactor Spring 2.0.7.RELEASE

Closes gh-4725

spring-boot-dependencies/pom.xml

@@ -120,7 +120,7 @@
 		<nekohtml.version>1.9.22</nekohtml.version>
 		<postgresql.version>9.4-1205-jdbc41</postgresql.version>
 		<reactor.version>2.0.7.RELEASE</reactor.version>
-		<reactor-spring.version>2.0.6.RELEASE</reactor-spring.version>
+		<reactor-spring.version>2.0.7.RELEASE</reactor-spring.version>
 		<sendgrid.version>2.2.2</sendgrid.version>
 		<servlet-api.version>3.1.0</servlet-api.version>
 		<simple-json.version>1.1.1</simple-json.version>