Bumping onos-maven-plugin version to 1.5 for release

Also, removing build dependency from root pom and updating version there.

Change-Id: I7dfb98f2b3377a715a075f4396d686e3112ad15d

@@ -56,9 +56,6 @@
 
         <module>tools/package/archetypes</module>
         <module>tools/package/branding</module>
-
-        <!-- FIXME remove before release -->
-        <module>tools/package/maven-plugin</module>
     </modules>
 
     <url>http://onosproject.org/</url>
@@ -622,7 +619,7 @@
                 <plugin>
                     <groupId>org.onosproject</groupId>
                     <artifactId>onos-maven-plugin</artifactId>
-                    <version>1.5-SNAPSHOT</version>
+                    <version>1.5</version>
                       <executions>
                         <execution>
                             <id>cfg</id>

@@ -24,7 +24,7 @@
     </parent>
 
     <artifactId>onos-maven-plugin</artifactId>
-    <version>1.5-SNAPSHOT</version>
+    <version>1.5</version>
     <packaging>maven-plugin</packaging>
 
     <description>Maven plugin for packaging ONOS applications or generating