replaced jackjack encryption with corrected ecies implementation
in ecies encryption, mac headers+ciphertext instead of just ciphertext
Merge pull request #704 from badmofo/ecies-encryption

replaced jackjack encryption with corrected ecies implementation
Remove Bitcoin address from serialized encryption format. Enable encrypt commands, fix ser_to_point() and add some tests
Merge branch 'master' of https://github.com/spesmilo/electrum into testnet