Log Message:
Update to 1.126

Upstream changes:
1.126     2016-12-27
        - no changes since v1.125_001

1.125_001 2016-12-27
        - if objects in the "expected" structured have an as_test_deep_cmp
          method, it will be called and its return (which should be a
          Test::Deep::Cmp object) will be used as the test for that location in
          the structure
        - internal undocumented class_base routine has been replaced
          with a different, clearly private routine
        - the LeafWrapper is also used for objects with an unknown reftype
          (like LVALUE or other weird ones)