Release share v0.29.1 (2021-08-06)

Revert the "lib/errors: return the internal error only if its not nil on
Unwrap".

Returning instance of e on Unwrap will cause recursive call.

The correct solution to convert an error to errors.E is by implementing
the As method.
-----BEGIN PGP SIGNATURE-----

iQEzBAABCAAdFiEEzvGqh+M3psOQ3lVQ+FB+6RSKTOMFAmENNFEACgkQ+FB+6RSK
TOMkCgf9GQ4Lw9UrJWPXvupnvSieGyNcJ1M5sFatq1tkd5Bnbqi1Iy+7RHZj1Asc
ksL/7igRkoJ/KKo54Fu08Lf8ky+BohwAmbenbCPTUHQu3dLAz2LlyBAJSFO2NIlV
0nx1HbIkpwfzxhPFb+EqbVXfU3siS9xYSgXJoynuCu8lM3K3uCBM1Mc1S4ac9IU5
KSJGdzCCkD3gWzJCuEYBmyJNBE2udCCYSRq+DatxKYtp8bk4X9yK8IH/dRf6iarg
sQZpjJBHvlxMvMV65WwFYnSoJk+ewhrPGK/yOAwQRiwSgbswoR7PHEaZ6zXIRboh
gPRH1BFyQ67CpBw3KUI+c7MghE0U0w==
=5sRO
-----END PGP SIGNATURE-----