Add license

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1517998 13f79535-47bb-0310-9956-ffa450edef68
Made sure the war plugin IT's work in git svn clone too

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1518293 13f79535-47bb-0310-9956-ffa450edef68
Fixed IT

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1518345 13f79535-47bb-0310-9956-ffa450edef68
Fixed unit test that was being overly detailed (failed on openjdk7)

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1518349 13f79535-47bb-0310-9956-ffa450edef68