Fix up version numbers following release

spring-boot-dependencies/pom.xml

@@ -3049,7 +3049,7 @@
 				<plugin>
 					<groupId>org.springframework.boot</groupId>
 					<artifactId>spring-boot-maven-plugin</artifactId>
-					<version>1.5.19.BUILD-SNAPSHOT</version>
+					<version>1.5.20.BUILD-SNAPSHOT</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>

spring-boot-samples/spring-boot-sample-actuator/build.gradle

 buildscript {
 	ext {
-		springBootVersion = '1.5.19.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here

spring-boot-samples/spring-boot-sample-ant/build.xml

@@ -11,7 +11,7 @@
 		actual jars). Run with '$ java -jar target/*.jar'.
 	</description>
 
-	<property name="spring-boot.version" value="1.5.19.BUILD-SNAPSHOT" />
+	<property name="spring-boot.version" value="1.5.20.BUILD-SNAPSHOT" />
 	<property name="lib.dir" location="${basedir}/target/lib" />
 	<property name="start-class" value="sample.ant.SampleAntApplication" />
 

spring-boot-samples/spring-boot-sample-ant/pom.xml

@@ -85,7 +85,7 @@
 					<dependency>
 						<groupId>org.springframework.boot</groupId>
 						<artifactId>spring-boot-antlib</artifactId>
-						<version>1.5.19.BUILD-SNAPSHOT</version>
+						<version>1.5.20.BUILD-SNAPSHOT</version>
 					</dependency>
 				</dependencies>
 			</plugin>

spring-boot-samples/spring-boot-sample-logback/build.gradle

 buildscript {
 	ext {
-		springBootVersion = '1.5.19.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here

spring-boot-samples/spring-boot-sample-profile/build.gradle

 buildscript {
 	ext {
-		springBootVersion = '1.5.19.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here

spring-boot-samples/spring-boot-sample-simple/build.gradle

 buildscript {
 	ext {
-		springBootVersion = '1.5.19.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here

spring-boot-samples/spring-boot-sample-web-static/build.gradle

 buildscript {
 	ext {
-		springBootVersion = '1.5.19.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
 	}
 	repositories {
 		// NOTE: You should declare only repositories that you need here

spring-boot-samples/spring-boot-sample-web-ui/build.gradle

 buildscript {
 	ext {
-		springBootVersion = '1.5.19.BUILD-SNAPSHOT'
+		springBootVersion = '1.5.20.BUILD-SNAPSHOT'
 		springLoadedVersion = '1.2.4.RELEASE'
 	}
 	repositories {

spring-boot-starters/spring-boot-starter-parent/pom.xml

@@ -171,7 +171,7 @@
 						<dependency>
 							<groupId>org.springframework.boot</groupId>
 							<artifactId>spring-boot-maven-plugin</artifactId>
-							<version>1.5.19.BUILD-SNAPSHOT</version>
+							<version>1.5.20.BUILD-SNAPSHOT</version>
 						</dependency>
 					</dependencies>
 					<configuration>