[Changelog] python-steem 0.2rc1

0.2rc1 Release 0.2rc1 - The exchange release!

This update introduces a brand new module in python-steem that allows to
trade in the internal STEEM:SBD market either using the cli_wallet or
using purely python.

Commits:

• [exchange] add transfer operation
• [exchange] initial work for steem exchange
• [transactions] manual tx signing for order create and cancel

How it works:

from pprint import pprint
from steemexchange import SteemExchange

class Config():
    witness_url     = "wss://this.piston.rocks/"
    account         = "xeroc"
    # Either provide a cli-wallet RPC
    wallet_host     = "localhost"
    wallet_port     = 8092
    # or the (active) private key for your account
    wif             = ""

steem = SteemExchange(Config)
pprint(steem.buy(10, "SBD", 100))
pprint(steem.sell(10, "SBD", 100))
pprint(steem.cancel("24432422"))
pprint(steem.returnTicker())
pprint(steem.return24Volume())
pprint(steem.returnOrderBook(2))
pprint(steem.ws.get_order_book(10, api="market_history"))
pprint(steem.returnTradeHistory())
pprint(steem.returnMarketHistoryBuckets())
pprint(steem.returnMarketHistory(300))
pprint(steem.get_lowest_ask())
pprint(steem.get_higest_bid())
pprint(steem.transfer(10, "SBD", "fabian", "foobar"))

More documentation can be found on http://python-steem.readthedocs.io/en/develop/