bat 0.4.1

fix: fix error when setting charging threshold

Set the charging threshold directly instead of running a shell command
prefixed with `su -c` because on some distributions the root user is
disabled by default.

Fixes parts of the following issues:
    - https://github.com/leveson/bat/issues/3
    - https://github.com/leveson/bat/issues/5

bat 0.4

feat: create reset feature

- Create a  reset feature that undoes the persistent battery charging
  threshold.
- Use the `less` pager that is in the path variable instead of directly
  specifying `/bin/less` as some systems seem not have it (or linked)
  in that directory.

bat 0.3.1

fix: fix errors on newer ASUS laptop models

On newer ASUS laptop models, the charging threshold variable can be
exposed under different names i.e. BAT0, BAT1, BATC, and BATT. This
would cause an error in the previous version of the application which
used the single hard-coded value BAT0.

Revert to using `/bin/bash` for writing to the systemd service that
persists the charging threshold level as `/bin/sh` does not seem to
function as intended.

Reference
- https://github.com/torvalds/linux/blob/1797d588af15174d4a4e7159dac8c800538e4f8c/drivers/platform/x86/asus-wmi.c#L440-L448

Fixes
- https://github.com/leveson/bat/issues/1

bat 0.3

refactor: replace the use of Bash with sh

- Use `bin/sh` instead of `bin/bash` in the systemd service that
  persists the battery charging threshold setting in order to gain
  broader compatibility for the application.
- Clarify usage and installation instructions.

bat 0.2

feat: persist battery charging threshold

Create a feature that enables the battery charging threshold to persist
between restarts.

bat 0.1

init: create bat