Fix capitalization of MicroG and update nodataperm

tools/helper.py

@@ -1,3 +1,4 @@
+import gzip
 import os
 import re
 import platform
@@ -131,3 +132,15 @@ def check_root():
     if os.geteuid() != 0:
         Logger.error("This script must be run as root. Aborting.")
         sys.exit(1)
+
+def backup(path):
+    gz_filename = path+".gz"
+    with gzip.open(gz_filename, 'wb') as f_gz:
+        with open(path, "rb") as f:
+            f_gz.write(f.read())
+
+def restore(path):
+    gz_filename = path+".gz"
+    with gzip.GzipFile(gz_filename) as f_gz:
+        with open(path, "wb") as f:
+            f.writelines(f_gz)