**Added:**
* New `write` flag added to `generate_map()` to enable disabling of
actually writing the file.
* The `generate_map()` function now returns the contents of the map file.
* Added `remove_exprs` keyword argument to `generate_map()` to allow for
filtering out command names. This defaults to removing `__pycache__`.
* New `--remove-exprs` command line option added to generate subcommand.
**Fixed:**
* Fixed Windows type error when matching against `.exe` and `.bat` files.
**Authors:**
* Anthony Scopatz
* Duncan Macleod