Update node_Float2Int.py
Fix

SvGet/SvSet update
util updates

More timing code, to be removed later but useful for now.
make_update_list simplified, one stack, not two.
switched from copy.deepcopy to our own implementation limited and
quicker function
fix float2int
Removed print in LineConnect
Merge pull request #38 from ly29/master

SvGet/SvSet