Refactor cfb.encrypt: fix inconsistent output depending on plaintext length. Use typed arrays for ciphertext.
Fix twofish cipher: did not accept typed arrays.
Minimize signature verifications to evaluate primary user
Merge pull request #217 from toberndo/cfb_fix

Refactoring cfb.encrypt, fix twofish cipher
Merge pull request #218 from toberndo/opt_prim_user

Minimize signature verifications to evaluate primary user
Merge subkey binding signatures in key update method
Merge pull request #222 from toberndo/subkey_update

Merge subkey binding signatures in key update method
Generate key by default without unlocking secret part. Use options parameter for generate method.