v1.5.0

This is not a big release, the only change is that amd-ucode was added to the pacman hook.

The bigger change was that previously the AUR repo contained everything, but now it only has the PKGBUILD and install from a github tag based tarball.

v1.4.1: just plain `cp` /proc/cmdline

this removes the bash-ism
```
`< …`
```