Various tweaks for distribution.

pom.xml

@@ -41,7 +41,8 @@
 		<url>git@github.com:gmessner/gitlab-api.git</url>
   		<connection>scm:git:git@github.com:gmessner/gitlab-api.git</connection>
   		<developerConnection>scm:git:git@github.com:gmessner/gitlab-api.git</developerConnection>
-	</scm>
+	  <tag>gitlab-api-1.0.0</tag>
+  </scm>
 
 	<build>
 		<defaultGoal>package</defaultGoal>
@@ -68,6 +69,19 @@
                 	<tag>${project.artifactId}-${project.version}</tag>
             	</configuration>
         	</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-gpg-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>sign-artifacts</id>
+						<phase>verify</phase>
+						<goals>
+							<goal>sign</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>