(include 0.2% slippage , 0.2% trade fee, total0.4% )
added label name.
added trade backtest period option.
core logic changed.
non repaint the signal.
USING "D" fame.
all frame same signal
change test codes.
added Trend transition criteria
only print out at "D" frame.
Ver 2.15 will be update buy / sell point changed. / core logic will be fixed.