Created by: jjk-jacky
The install script didn't support the use of a destination directory, which can be pretty useful e.g. to create packages.
This adds a few options, but should work pretty much as it dir before, only allowing to set a destination directory as well. Lacking this made the script unable to be used to create packages, e.g. see https://bugs.archlinux.org/task/32669
The --auto mimics the original behavior (without parameters), and --local or --global should be enough most of the times.