Changed the internal data handling mechanism. Now, everything is as byte arrays. This was done since now, every kind of data can be encoded to Base58. The are no illegal characters. Before, one could initialize the EncryptedKeyPair with data that could not be decoded by Base58. Now, that is not possible anymore.
Corrected a typo.
Adapted to the changes in EncryptedKeyPair.
Changed to Base58 as encoding.
Use the correct encoding to test.