[ci skip]prepare release 3.2.1

pom.xml

@@ -7,7 +7,7 @@
 	</parent>
 	<groupId>net.ihe.gazelle.maven</groupId>
 	<artifactId>gazelle-hl7-messagestructures</artifactId>
-	<version>3.2.1-SNAPSHOT</version>
+	<version>3.2.1</version>
 	<packaging>jar</packaging>
 	<name>Gazelle HL7 Message Structures</name>
 	<description>HL7 Message structures used for HAPI validation</description>
@@ -31,7 +31,7 @@
 		<connection>scm:git:${git.project.url}</connection>
 		<url>scm:git:${git.project.url}</url>
 		<developerConnection>scm:git:${git.project.url}</developerConnection>
-		<tag>HEAD</tag>
+		<tag>3.2.1</tag>
 	</scm>
 
 	<dependencies>