[maven-release-plugin] prepare for next development iteration

Author: wanglinsong

pom.xml

@@ -10,7 +10,7 @@
 
     <groupId>com.facebook.presto</groupId>
     <artifactId>presto-maven-plugin</artifactId>
-    <version>0.5</version>
+    <version>0.6-SNAPSHOT</version>
     <packaging>takari-maven-plugin</packaging>
 
     <name>Presto Maven Build Extension</name>
@@ -166,8 +166,4 @@
             </build>
         </profile>
     </profiles>
-
-  <scm>
-    <tag>presto-maven-plugin-0.5</tag>
-  </scm>
 </project>