Loading of Test data fails due to unique primary key constraint in Allowance (#613)

* Ignore Pycharm IDE directory

* init will get executed even if there are no tables, hence migrations cannot be applies at the first step

* Separate loanaccount test data load because primary key conflicts due to post_save signal

* Avoid multiple DB save calls

horilla_backup/migrations/__init__.py

@@ -4,14 +4,17 @@ import atexit
 def shutdown_function():
     from horilla_backup.models import GoogleDriveBackup, LocalBackup
 
-    if GoogleDriveBackup.objects.exists():
-        google_drive_backup = GoogleDriveBackup.objects.first()
-        google_drive_backup.active = False
-        google_drive_backup.save()
-    if LocalBackup.objects.exists():
-        local_backup = LocalBackup.objects.first()
-        local_backup.active = False
-        local_backup.save()
+    try:
+        if GoogleDriveBackup.objects.exists():
+            google_drive_backup = GoogleDriveBackup.objects.first()
+            google_drive_backup.active = False
+            google_drive_backup.save()
+        if LocalBackup.objects.exists():
+            local_backup = LocalBackup.objects.first()
+            local_backup.active = False
+            local_backup.save()
+    except:
+        pass
 
 
 try: