Bug 781454 - Export 3.0 packages also as 2.6
    
    https://bugzilla.redhat.com/show_bug.cgi?id=781454
    Technically speaking, the 3.0 api should be named 2.6, and that is
    why Eclipse accepts only 2.6 javax.packages as prerequisities.
    
    Signed-off-by: Ivan Afonichev <ivan.afonichev@gmail.com>