Bitcoin Futures Trading Automated Trading System (Author Direct Lecture)

Added defensive code to the following program to prevent errors.

1.5.robobytes_trend.py

2.4.robobytes_ rev.py

3.4.robobytes_ macd.py

4.4.robobytes_ bb.py

Also, fixed an error in the get_stochRSI function in the calc_ indicators.py program.

You can download the revised program by re-downloading the lecture files.

thank you