refactor submodules, add xorg, small fixes & changes

refactor submodules, add xorg, small fixes & changes

Xorg font descr changed to be less specific
Xcursor modified (pointless future-proofing)
temporarily removed urxvt unicode termName for NetBSD
fixed xdotool in xinitrc
deprecate tint2, etc in xinitrc in favor of i3status (soon conky)
LC, LANG, PATH to .zshenv; don't rely on FreeBSD login env
fixed XDG, etc vars to accept pkgsrc and other paths
fix OSTYPE, local vars, NetBSD wscons fix in .zshrc
add NetBSD mixerctl, /dev/sound aliases
improve FreeBSD sound aliases
dmenu color script no longer uses fixed dmenu path
add i3-mode, i3-printinfo; remove tint2-i3mode

install.sh:
	fix & add more dirs, uname -o -> -s, add `test' arg
	add xorg icons, themes, fonts; remove .hushlogin
	hardcode XDG env vars, may not be set yet