Forward all 5 arguments to previous window.onerror
Create a trace with error info to show on the UI
Catch errors with Meteor._debug

If zone is available (which should be) catch the error and send it to servers
Send errors from Meteor._debug if no zone

Should send only if a zone is not available (for some reason)
Merge pull request #45 from mnmtanish/format-uncaught

Format uncaught
fix: uncaught exceptions do not crash the app after reporting
If we simply throws the error form the callback,
it gets tracked again.
So, we need some measures to tell not to track again