Update project version suffix to 'SNAPSHOT', docker tag still uses 'snapshot'

Author: David Turanski

pom.xml

@@ -5,7 +5,7 @@
 
 	<groupId>io.projectriff</groupId>
 	<artifactId>java-function-invoker</artifactId>
-	<version>0.0.3-snapshot</version>
+	<version>0.0.3-SNAPSHOT</version>
 	<packaging>jar</packaging>
 
 	<parent>
@@ -26,6 +26,7 @@
 		<reactor.version>3.1.1.RELEASE</reactor.version>
 		<dockerfile-maven.version>1.3.6</dockerfile-maven.version>
 		<docker.org>projectriff</docker.org>
+		<docker.tag>0.0.3-snapshot</docker.tag>
 	</properties>
 
 	<dependencies>
@@ -131,7 +132,7 @@
 				<version>${dockerfile-maven.version}</version>
 				<configuration>
 					<repository>${docker.org}/${project.artifactId}</repository>
-					<tag>${project.version}</tag>
+					<tag>${docker.tag}</tag>
 				</configuration>
 			</plugin>
 		</plugins>