Chandelier Exit - Heikin Ashi

This is a redesign of the Chandelier Exit indicator. It removes stupid transitions between Chandelier Exit' states and highlights initial points for both lines.
This indicator was originally developed by Charles Le Beau and popularized by Dr . Alexander Elder in his book "Come Into My Trading Room: A Complete Guide to Trading" (2002).
In short, this is a trailing stop-loss based on the Average True Range (ATR).

If "Heikin Ashi for calculation" is checked, then ATR and buy/sell signals are calculated based on heikin ashi candles.
You don't need to change bar style to heikin ashi.

Thanks to everget for the initial version.