Log Message:
Update security/py-cryptopp to 0.5.29.

Upstream changes:

Not complete, the only info mentionned in the Changelog is this:

2011-01-16 -- pycryptopp v0.5.28

re-enable the ECDSA module, but please do not rely on it as it is expected to
change in backwards-incompatible ways in future releases several changes to the
build system to make it tidier and less error-prone -- see revision control
history for details