0.5.0.1
 - multythreading
 - feed monitoring (in parallel thread) and whether the line is up or down
so now to restart the feed.
 - made FPFeed more orginized
 - L2OBR is wotking now - but should be checked.

next :
 -test resiliency (line is dowm then up again)
 -test orderbook for L2 (from OBR feed)
 -recheck and redid 'weighted' functions