added logic to install the tetanus_update scirpt on the system.

tetanus_update.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+config_path="|||CONFIG|||"
+current_version=$(cat $config_path/version | grep version | cut -d " " -f 2)
+path=$(cat $config_path/version | grep path | cut -d " " -f 2)
+version=$(curl https://git.pyro.monster/pyro/tetanus/releases/tag/latest | grep "<title>" | cut -d ">" -f 2 | cut -d " " -f 1)
+
+if [[ "$version" == "$current_version" ]]; then
+    echo "up to date"
+else
+    echo "update needed"
+    curl https://git.pyro.monster/pyro/tetanus/releases/download/latest/tetanus -o $config_path/new_tetanus
+    chmod +x $config_path/new_tetanus
+    if [ "$(stat -c '%u' $path)" -eq 0 ]; then
+        sudo cp $config_path/new_tetanus $path
+    else
+        cp $config_path/new_tetanus $path
+    fi
+    echo "version: $version" > $config_path/version
+    echo "path: $path" >> $config_path/version
+    echo update complete!
+fi