added update command

pocket_friends/development/dev.py

@@ -1,4 +1,7 @@
 import os
+import sys
+
+import pygame
 
 
 def reboot_system():
@@ -7,3 +10,8 @@ def reboot_system():
 
 def shutdown_system():
     os.system('sudo shutdown now')
+
+def update():
+    os.system('bash "cd ~/pocket_friends && git pull"')
+    os.system('bash "cd ~/pocket_friends && git checkout ."')
+    sys.exit(1)

pocket_friends/development/dev_menu.py

@@ -5,7 +5,8 @@ import pocket_friends.development.dev as dev
 
 dev_functions = {
     'Restart': 'reboot_system',
-    'Shutdown': 'shutdown_system'
+    'Shutdown': 'shutdown_system',
+    'Update': 'update'
 }