Show error window for unhandled exceptions

Use exception hook from main thread for all threads

Use signal to delegate error window creation to GUI thread

Add more information to issue template

Update to PyQt5

Switch from Github to REST-Service

Report to web service instead of opening the browser

Fix imports

Change crashhub URL to electrum.org server

Explain that exception hooks are only used in the Qt Gui now

gui/qt/main_window.py

@@ -32,8 +32,11 @@ from decimal import Decimal
 import base64
 from functools import partial
 
-from PyQt5.QtCore import Qt
 from PyQt5.QtGui import *
+from PyQt5.QtCore import *
+import PyQt5.QtCore as QtCore
+
+from .exception_window import Exception_Hook
 from PyQt5.QtWidgets import *
 
 from electrum.util import bh2u, bfh
@@ -102,6 +105,9 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
 
         self.gui_object = gui_object
         self.config = config = gui_object.config
+
+        self.setup_exception_hook()
+
         self.network = gui_object.daemon.network
         self.fx = gui_object.daemon.fx
         self.invoices = wallet.invoices
@@ -203,6 +209,9 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
     def on_history(self, b):
         self.new_fx_history_signal.emit()
 
+    def setup_exception_hook(self):
+        Exception_Hook(self)
+
     def on_fx_history(self):
         self.history_list.refresh_headers()
         self.history_list.update()