Update wif prefixes for changes in pycoin interface
Initial asyncio implementation for talking to bitcoind
yield from in all the right places
updated API docs
more doc tweaks with lock param for create_issuance
Missed a couple rpc calls and wip fix
aiohttp instead of requests, with aiorun() to emulate synchronicity
Update requirements requests->aiohttp, python 3.4
Yield from functions in bitcoin.py
Tests pass (excluding test_log and test_json_rpc)
Use aiorun()
Print block timing information
Fix merge conflict
Rename aiorun to aio_wait_for
Rename aio_wait_for to aio_run_synch
Put wif prefixes in config
Update pycoin version to 0.51
Merge pull request #261 from mcelrath/asyncio

Asyncio based on develop
tweak dividend rules; fixes #254
update test suite