Fixed the maven release plugin config so that the module's version is
not asked for every module.
diff --git a/pom.xml b/pom.xml
index 2325252..d9b3401 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@
     <junit.version>4.12</junit.version>
     <log4j.version>1.2.17</log4j.version>
     <logback.version>1.2.3</logback.version>
-    <mina.core.version>2.1.1</mina.core.version>
+    <mina.core.version>2.1.2-SNAPSHOT</mina.core.version>
     <org.osgi.core.version>6.0.0</org.osgi.core.version>
     <org.apache.felix.version>6.0.2</org.apache.felix.version>
     <pax-exam.version>4.13.1</pax-exam.version>
@@ -121,7 +121,10 @@
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-release-plugin</artifactId>
           <configuration>
+            <preparationGoals>clean install</preparationGoals>
+            <goals>clean deploy</goals>
             <tagNameFormat>@{project.version}</tagNameFormat>
+            <autoVersionSubmodules>true</autoVersionSubmodules>
           </configuration>
         </plugin>