bcal v1.6 – Byte CALculator for storage conversions and calculations

## What's in?

- Evaluate storage arithmetic expressions involving +, -, *, / (thanks @SampuZ)

- A minimal mode (option `-m`) to show result in bytes

- Assume byte if unit is omitted for a conversion

- A Python3 test framework with multiple test cases

- Several fixes and additional sanity checks on input

Homepage: https://github.com/jarun/bcal

Features: https://github.com/jarun/bcal#features