corrected vim modeline
major re-evaluation

	* removed extensions from run scripts
	* split .profile.d scripts further
	* added .profile.d/20-has_arg
	* added .profile.d/20-mkscript
	* added .profile.d/bin/fehbg
	* added .xinitrc.d/
	* split .xinitrc into separate script files

	NOTE: .xinitrc.d/90-wallpaper is broken