Add License and Notice file.
Add them into the created bundle
Modify the ServletContextGroup license headers (Apache Licence)
Add rat in the pom to check the license headers consistency.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@759859 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/http.jetty/NOTICE b/http.jetty/NOTICE
new file mode 100644
index 0000000..a51c717
--- /dev/null
+++ b/http.jetty/NOTICE
@@ -0,0 +1,22 @@
+Apache Felix Jetty HTTP Service
+Copyright 2008-2009 The Apache Software Foundation
+
+I. Included Software
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+Licensed under the Apache License 2.0.
+
+This product includes software developed by
+Mortbay (http://mortbay.org)
+Licensed under the Apache License 2.0.
+
+II. Used Software
+
+This product uses software developed at
+The OSGi Alliance (http://www.osgi.org).
+Copyright (c) OSGi Alliance (2000, 2007).
+Licensed under the Apache License 2.0.
+
+III. License Summary
+- Apache License 2.0
\ No newline at end of file