Update to 1.6.3
    
    * Drop upstreamed patch
    * Don't return ModuleStream objects from modulemd_module_new_all_from_*_ext()
    * Ensure that Component buildorder property is signed
    * Work around optimization bug
    * Don't crash dumping translation events without summary or desc
    
    Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>