Add automatic AUR repo fetch script

.gitignore

@@ -18,9 +18,9 @@
 
 !/.config/
 !/.zsh/
+!/AUR/
+!/Wallpapers/
 
 !/.gnupg/gpg-agent.conf
 !/.gnupg/gpg.conf
 !/.gnupg/sshcontrol
-
-!/Wallpapers/

AUR/.gitignore

@@ -0,0 +1,4 @@
+/*
+/*/
+!/.gitignore
+!/update.sh

AUR/update.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+for dir in *; do
+    if [ -d "${dir}" ]; then
+        cd ${dir}
+        git fetch --all
+        BEHIND=$(git rev-list HEAD...origin/master --count)
+        if [[ ! ${dir} -eq 0 ]]; then
+            echo "$(pwd) is ${BEHIND} commits behind"
+        fi
+        cd ..
+    fi
+done