minor fixes

server.py

@@ -238,8 +238,10 @@ def save():
 @app.route("/upload", methods = ['PUT', 'POST', 'GET'])
 def upload():
     try:
+        remove_old_uploads()
         images = request.files
         names = list(request.files.keys())
+
         for name in names:
             images[name].save('user_uploads/' +name)
  
@@ -247,7 +249,14 @@ def upload():
         print(e)
     return index()
 
-
+def remove_old_uploads():
+    #remove old files 
+    
+    image_settings = json.load(open('csv/image_settings.json', 'r'))
+    GIF_settings = json.load(open('csv/GIF_settings.json', 'r'))
+    for filename in os.listdir('user_uploads'):
+        if filename not in image_settings['images'] and filename not in GIF_settings['images']:
+            os.remove('user_uploads/'+filename)