remove old deprecated pkgbuilds
update kactivities to pacman 4.1
update mouse-emul-git to pacman 4.1 and add systemd service
ofono-git for pacman 4.1
Update plugui-git for pacman 4.1
replace xf86-video-armsoc with -git built from the same tag

this makes it so we don't have to use tarballs and can just pull the
correct commit
Merge pull request #451 from gtmanfred/master

convert some -git pkgbuilds to pacman 4.1