Added gmail.json file to excluded file, added file also to excluded file during update

.gitignore

@@ -30,4 +30,4 @@ vendor/
 settings.yaml
 gdrive_credentials
 client_secrets.json
-
+gmail.json

cps/updater.py

@@ -227,7 +227,8 @@ class Updater(threading.Thread):
             os.sep + 'vendor', os.sep + 'calibre-web.log', os.sep + '.git', os.sep + 'client_secrets.json',
             os.sep + 'gdrive_credentials', os.sep + 'settings.yaml', os.sep + 'venv', os.sep + 'virtualenv',
             os.sep + 'access.log', os.sep + 'access.log1', os.sep + 'access.log2',
-            os.sep + '.calibre-web.log.swp', os.sep + '_sqlite3.so', os.sep + 'cps' + os.sep + '.HOMEDIR'
+            os.sep + '.calibre-web.log.swp', os.sep + '_sqlite3.so', os.sep + 'cps' + os.sep + '.HOMEDIR',
+            os.sep + 'gmail.json'
         )
         additional_path = self.is_venv()
         if additional_path: