improve git ignore

Signed-off-by: Pablo Lezaeta <bug@localhost.localdomain>
	modified:   .gitignore
	modified:   elementary-xfce-icons-git/PKGBUILD
	new file:   gtk-theme-numix/PKGBUILD
	new file:   mdm-display-manager/PKGBUILD
	new file:   mdm-display-manager/defaults.conf
	new file:   mdm-display-manager/mdm-autologin.pam
	new file:   mdm-display-manager/mdm-display-manager.install
	new file:   mdm-display-manager/mdm-plymouth.service
	new file:   mdm-display-manager/mdm.pam
	new file:   mdm-display-manager/mdm.service
	new file:   mdm-display-manager/org.cinnamon.pkexec.mdmsetup.policy
	new file:   numix-icon-theme-git/PKGBUILD
	modified:   pacman-git/PKGBUILD
	modified:   ponysay-git/PKGBUILD
	modified:   util-say-git/PKGBUILD
	modified:   xfce-theme-albatross-git/PKGBUILD
	modified:   xfce-theme-bluebird-git/PKGBUILD
	modified:   xfce4-whiskermenu-plugin-git/PKGBUILD
	modified:   zsh-git/PKGBUILD
	modified:   zsh-syntax-highlighting-git/PKGBUILD
üp

Signed-off-by: Pablo Lezaeta Reyes <prflr88@gmail.com>