Usr move

The  /usr move is a concept of moving various applications installed into the filesystem root to /usr prefix in order to unify the filesystem layout.

Distributions for which merged /usr is default for new installations (listed by date of completion):
 * Fedora
 * Mageia
 * Arch Linux
 * Red Hat Enterprise Linux
 * Chakra
 * Void Linux
 * Debian
 * Ubuntu

Distributions which have partially completed the /usr merge:
 * openSUSE

Distributions for which merged /usr is optional, but not default:
 * Gentoo