Integrate

Here is the pull request you asked for long ago.

There was the point about renaming alerts.html to dzAlerts.html, but I did not know what you intended to accomplish with that.  Hopefully you comments will.

Thanks
app.config["now"] is determined in the config.py.  Usually it is the current date, but the config.ini file can set it to a date good for testing
https://github.com/jmaher/alert_manager/pull/102/files#diff-fdf313ed2303059c44a9ebfffbef8eebR53