Update package.json

Changed email.js dependency from git:// to https://
Update package.json

Changed bitcoincharts dep to one with updated api link
Update bitcoincharts.js

Switched reversal of trades and added fetching of at least the last interval of trades
Update bitcoincharts.js
Update package.json
Changed path for node-bitcoincharts as the author updated his rep.
Fixed NaN Values for EMAs

In case of undefined prices due to bitcoincharts downtimes, gekko will now take the last known ema value for those candles.
Added debug log on failed ema calculation
Merge pull request #40 from milianx/master

Fixed realtime data for BTCe