Merge branch 'devel-0.4.1' into self-referencing-types

CHANGES.rst

doc/source/docs/api-reference.rst

doc/source/docs/type/opentype/contents.rst

doc/source/docs/type/opentype/opentype.rst

pyasn1/codec/ber/decoder.py

pyasn1/codec/ber/encoder.py

pyasn1/codec/cer/decoder.py

pyasn1/codec/cer/encoder.py

pyasn1/codec/der/encoder.py

pyasn1/codec/native/decoder.py

pyasn1/codec/native/encoder.py

pyasn1/compat/calling.py

pyasn1/compat/integer.py

pyasn1/compat/string.py

pyasn1/debug.py

pyasn1/type/namedtype.py

pyasn1/type/opentype.py

pyasn1/type/univ.py

tests/base.py

tests/codec/ber/test_decoder.py