Update all SNAPSHOT dependencies

- spring-cloud-build 1.3.1.RELEASE
- spring-cloud Dalston.RC1
- spring-cloud-deployer 1.2.0.M3
- spring-cloud-task 1.2.0.M2
- spring-cloud-dataflow-ui 1.2.0.M2

Resolves #1227

Author: trisberg

pom.xml

@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>1.3.1.BUILD-SNAPSHOT</version>
+		<version>1.3.1.RELEASE</version>
 		<relativePath />
 	</parent>
 	<scm>
@@ -24,19 +24,19 @@
 	</scm>
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-dataflow-ui.version>1.2.0.BUILD-SNAPSHOT</spring-cloud-dataflow-ui.version>
+		<spring-cloud-dataflow-ui.version>1.2.0.M2</spring-cloud-dataflow-ui.version>
 
-		<spring-cloud-deployer.version>1.2.0.BUILD-SNAPSHOT</spring-cloud-deployer.version>
-		<spring-cloud-deployer-local.version>1.2.0.BUILD-SNAPSHOT</spring-cloud-deployer-local.version>
+		<spring-cloud-deployer.version>1.2.0.M3</spring-cloud-deployer.version>
+		<spring-cloud-deployer-local.version>1.2.0.M3</spring-cloud-deployer-local.version>
 
 		<!-- Note: Change ./spring-cloud-dataflow-server-local/pom.xml to match the spring-boot.version -->
 		<spring-boot.version>1.5.2.RELEASE</spring-boot.version>
 
 		<!-- Note: Change ./spring-cloud-dataflow-server-local/pom.xml to match the spring-cloud-task.version -->
-		<spring-cloud-task.version>1.2.0.BUILD-SNAPSHOT</spring-cloud-task.version>
+		<spring-cloud-task.version>1.2.0.M2</spring-cloud-task.version>
 
 		<!-- Note: Change ./spring-cloud-dataflow-server-local/pom.xml to match the spring-cloud.version -->
-		<spring-cloud.version>Dalston.BUILD-SNAPSHOT</spring-cloud.version>
+		<spring-cloud.version>Dalston.RC1</spring-cloud.version>
 
 		<spring-framework.version>4.3.6.RELEASE</spring-framework.version>
 		<spring-analytics.version>1.1.1.RELEASE</spring-analytics.version>