Spices.py: fix file permissions durring install

Because the files are zipped, and then unziped, the execute bit is getting lost when xlets are installed through cinnamon-settings, which in turn causes certain included scripts to not run. This sets the permissions manually on all files to ensure that everything has the necessary permissions.

files/usr/share/cinnamon/cinnamon-settings/bin/Spices.py

@@ -621,6 +621,11 @@ def install_from_folder(self, folder, uuid, from_spices=False):
         contents = os.listdir(folder)
 
         if not self.themes:
+            # ensure proper file permissions
+            for root, dirs, files in os.walk(folder):
+                for file in files:
+                    os.chmod(os.path.join(root, file), 0o755)
+
             # Install spice localization files, if any
             if 'po' in contents:
                 po_dir = os.path.join(folder, 'po')