new signal Orderook.signal_fulldepth_processed
* new method OrderBook.get_total_up_to(price)
This calculates on demand the total volume in BTC and
in Fiat from the top of the book up to this level.
It has a cache to not do more work than ever needed.
* rewrite the code for view of orderbook and depth chart
to make use of this method to save a lot of cpu.
Please enter the commit message for your changes. Lines starting
separate goxtool ini defaults and goxapi ini defaults
depth chart can now also toggle on/off integrating the totals, just like the orderbook: hotkey: "T" (shft+t)
OrderBook.slot_tick() do not emit signal_changed when nothing was changed
make sure there is no empty level left after own order has been removed
Merge branch 'master' of https://github.com/prof7bit/goxtool

Conflicts:
	goxtool.py