I can only post here for now.  

This doesn't apply to just bitcoin but to anything. I dont understand why the MACD line is not crossing the middle when the MA and EMA lines cross.

This video says this is what suppose to happen:
http://www.youtube.com/watch?v=H3IrfeDp4-0

And this is my chart:
https://www.tradingview.com/e/X2f5x5S3/#

I figured it out, I added two EMA lines, made one 26 day and the other 12 day, and now macd and the EMA lines cross over in the right spots.