Create and use Mars M4 target-platform

mistria@mistria--rh:~/git/p2diff/org.eclipse.equinox.p2.example.p2diff.packaging/target/products/org.eclipse.equinox.p2.example.p2diff.product/linux/gtk/x86_64$ ./p2diff -mode=ignoreVersions file:/home/mistria/git/jbosstools-target-platforms/jbosstools/multiple/target/jbosstools-multiple.target.repo http://download.jboss.org/jbosstools/targetplatforms/jbosstoolstarget/4.50.0.Alpha1-SNAPSHOT/REPO
< org.eclipse.m2e.workspace.cli [0.3.0] 
< org.eclipse.e4.ui.dialogs [1.0.0.v20141106-1720] 
> org.apache.tomcat.util [7.0.26.v201205030742] 
> org.apache.el [7.0.26.v201205020640] 
> org.eclipse.equinox.executable_root.gtk.linux.ppc64le [3.6.100.v20140924-1957] 
> org.apache.juli.extras [7.0.26.v201205020640] 
> org.apache.coyote [7.0.26.v201205030742] 
> org.eclipse.core.filesystem.linux.ppc64le [1.4.0.v20140822-1153] 
> org.apache.jasper [7.0.26.v201205030742] 
> org.apache.tomcat.api [7.0.26.v201205020640] 
> org.eclipse.equinox.launcher.gtk.linux.ppc64le [1.0.200.v20140409-1208] 
> org.eclipse.swt.gtk.linux.ppc64le [3.104.0.v20141029-1135] 
> org.apache.catalina [7.0.26.v201205021508] 
=== Summary ===
file:/home/mistria/git/jbosstools-target-platforms/jbosstools/multiple/target/jbosstools-multiple.target.repo contains 2 unique IUs
http://download.jboss.org/jbosstools/targetplatforms/jbosstoolstarget/4.50.0.Alpha1-SNAPSHOT/REPO contains 11 unique IUs