* Split crash reporter class
In Qt related stuff and basic stuff.
* Crash reports from Android
* Ignore exceptions in crash_reporter (if any)
* Open issue in browser
* Switch back to real server
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