Add flavours i3 and xorg; add choice for flavours; add reboot

flavours/i3/install.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+echo "~> Installing i3"
+pacstrap /mnt i3 feh xcompmgr dmenu acpi
+
+echo "~> Creating .xinitrc"
+echo "xcompmgr -c &" > /mnt/home/$username/.xinitrc
+echo "exec i3" >> /mnt/home/$username/.xinitrc

flavours/xorg/install.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+pacstrap /mnt xorg xorg-xinit