Moved registering application urls out of the run def

and into their own

Added 404 handling

Split registration of URLs that use rpc.rpc and others into
own def. Seems logical to be able to register separately for later use.

freqtrade/rpc/api_server.py

@@ -27,13 +27,19 @@ class ApiServerSuperWrap(RPC):
 
         self._config = freqtrade.config
 
+        # Register application handling
+        self.register_rest_other()
+        self.register_rest_rpc_urls()
+
         thread = threading.Thread(target=self.run, daemon=True)
         thread.start()
 
-    def run(self):
-        """ Method that runs forever """
+    def register_rest_other(self):
+        #Added as a placeholder for app URLs that are not implemented in rpc.rpc
+        app.register_error_handler(404, self.page_not_found)
 
-        # defines the url rules available on the api server
+    def register_rest_rpc_urls(self):
+        # register the url rules available on the api server
         '''
         First two arguments passed are /URL and 'Label'
         Label can be used as a shortcut when refactoring
@@ -43,6 +49,9 @@ class ApiServerSuperWrap(RPC):
         app.add_url_rule('/start', 'start', view_func=self.start, methods=['GET'])
         app.add_url_rule('/daily', 'daily', view_func=self.daily, methods=['GET'])
 
+    def run(self):
+        """ Method that runs forever """
+
         """
         Section to handle configuration and running of the Rest server
         also to check and warn if not bound to a loopback, warn on security risk.
@@ -81,6 +90,12 @@ class ApiServerSuperWrap(RPC):
     each Telegram command should have a like local substitute
     """
 
+    def page_not_found(self, error):
+        # return "404 not found", 404
+        return jsonify({'status': 'error',
+                        'reason': '''There's no API call for %s''' % request.base_url,
+                        'code': 404}), 404
+
     def hello(self):
         # For simple rest server testing via browser
         # cmds = 'Try uri:/daily?timescale=7 /profit /balance /status