Some tweaks and corrections

- Prefer stripping the leading v on the version number
- List deps alphabetically (this is a personal preference)
- You don't need replaces with git packages
- Didn't change that, but sha512 is probably overkill, I prefer sha256
- Functions implicetely cd into $srcdir (some TUs still prefer explicitely cding into it, I don't)
- ${pkgname%-*} is shorter :P
- Your BMON_VERSION lines can be achieved with fragments in the source array (see VCS guidelines on the wiki)
- Man dir always default to that, however your sysconfdir was wrong
- docs and manpages should be in a folder without the -git suffix, only license folder needs to match the package name