Attempt to handle the fact that based on defines ASN1_ITEM_EXP might be something else
Clean up some docstrings
Merge pull request #320 from alex/cleanup-asn1-crap

Attempt to handle the fact that based on defines ASN1_ITEM_EXP might be something else
Make these examples consistent
Merge pull request #321 from alex/docstring-cleanup

Clean up some docstrings
Raise UnsupportedAlgorithm when initing Hash()

Instead of just an AssertionError.