Test deserialized public and private
Test deserialization with Dogecoin, too
100% coverage on wallet.bip32
Remove unused code
Python mod of a positive number is always positive
Check invalid private key exponent
Move from_master_secret_slow to Wallet, and test it
Separate new_address_for_user tests
A couple untested things
For real? Python3 doesn't have xrange.
Merge pull request #25 from sbuss/a_few_more_tests

Bringing test coverage up to 99%