Alpha - 0.0.8

Changelog for 0.0.8-alpha

Released date : Apr 24 2018

Concerned issues :

#26 optimized moving average evaluator 
#90 added can_create_order() method to check if an order is issuable
#91 refactored dispatchers
#93 [Profitability] Fix calculation error
#97 [Order] Fix order cancel when state change
#99 [Symbol evaluator] Symbol evaluator fail to manage multi exchanges
#100 [Exchanges] Implement automatic instanciation of exchange when keys are in config.json

New features :

- New TA evaluators : DoubleMA, BollingerBand, ADX, MACD
- Risk trading management (order price, order quantity, final state thresholds)

Bug fix :

- Fix constants in order creation
- Fix order end notification
- Fix Limit price 10% to 5% max
- Fix gmail notifications
- Fix evaluator final & add startup notification
- Fix portfolio profitability
- Fix order cancel when state change