debug code for issue #4 / NMC support
https://github.com/kuzetsa/gekko/issues/4

This code should help troubleshoot...

I was planning to audit and refactor this anyway
the cex.io exchange API wrapper needs updated
that way NMC can be reinvested too...

The changes will also make it easier to add
LTC, IXC, etc. etc. etc. in the future :)
pulled in EMA changes from master branch
Merge commit 'bb3a6364ae1b5eaf4aafbd398534cd481db7e340' of github.com:kuzetsa/gekko into portfolio.debug