ruby-tins: Add a license.
beef: Make a bunch of style/standards changes.

This is mostly a style commit. This also adds a `pkgver` function.
Merge branch 'master' of https://github.com/archey/blackarch into unstable
flawfinder: Make some style changes.
htshells: Add a `pkgver` function. Remove the install file.
nfex: Make some style changes.
dbd: Make some tiny style changes.
added pnscan per issue #316
added canari per issue #191
added jsql per issue #132
Merge remote-tracking branch 'upstream/unstable'