Log Message:
v0.2.1

    Improve bitcoin address handling. P2SH and P2PKH addresses now get their own \ 
classes - P2SHBitcoinAddress and P2PKHBitcoinAddress respectively - and P2PKH \ 
can now convert scriptPubKeys containing non-canonical pushes as well as bare \ 
checksig to addresses.
    .deserialize() methods now fail if there is extra data left over.
    Various other small bugfixes.
    License is now LGPL v3 or later.

v0.2.0

Major change: CTransaction, CBlock, etc. now come in immutable (default) and \ 
mutable forms. In most cases mutable and immutable can be used interchangeably; \ 
when that is not possible methods are provided to create new (im)mutable objects \ 
from (im)mutable ones efficiently.

Other changes:

    New BIP70 payment protocol example. (Derren Desouza)
    Rework of message serialization. Note that this may not represent the final \ 
form of P2P support, which is still in flux. (Florian Schmaus)
    Various bugfixes

Finally starting this release, git tags will be of the form \ 
'python-bitcoinlib-(version)', replacing the less specific '(version)' form \ 
previously used.