o Give the ability to set a Main-Class attribute in the manifest

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113192 13f79535-47bb-0310-9956-ffa450edef68

java/plugin.properties

@@ -2,4 +2,5 @@
 # P L U G I N P R O P E R T I E S
 # -------------------------------------------------------------------
 
-maven.jar.manifest = ${maven.conf.dir}/Manifest.mf
+maven.jar.manifest = ${maven.conf.dir}/Manifest.mf
+maven.jar.mainclass =