implemented 'send' for uncolored coins; improved UTXO information
txspec framework
coloredcoinlib: txspec framework
compose tx for OBC + fixes
fixed colored coin sending (OBC), address reuse
issue coins
enabled proper block scan in coloredcoinlib
added python-bitcoinlib (pythonize branch)
use bitcoin.core to parse transactions (instead of getting JSON from bitcoind)
use bitcoin.rpc; block-at-once method for iter_block_txs
automatically figures out bitcoind URL
initial version of utxodb
utxodb works
initial version of txdb, minor fixes
updated README
Issue 18: implement JSON-RPC API

Created a simple python JSON-RPC server script called ngccc-server.py
that allows you to call all the same functions as in ngccc.py but from
a JSON-RPC API.

To start the server run:

python ngccc-server.py localhost 8080

After that, you can connect to localhost:8080 and do JSON-RPC calls.

Note that pyjsonrpc is now required.
Merge pull request #19 from jimmysong/18

Issue 18: implement JSON-RPC API