Arguments to screen date ranges

[alichtman]

Add two command line arguments:

--since MM-DD-YYYY and --until MM-DD-YYYY, and allow them to be used in conjunction or separately to screen for certain date ranges

[aashutoshrathi]

@alichtman would you like to send a PR?

[alichtman]

I don't have any free bandwidth to contribute, unfortunately.

[gpetrousov]

As I understand this will work only for the 30 events that the API allows you to fetch?
https://developer.github.com/v3/activity/events/
Meaning that you can only filter within the dates that these events cover.

[gpetrousov]

@aashutoshrathi Can I work on this if @alichtman cannot?

[aashutoshrathi]

Sure @gpetrousov

[VANKINEENITAWRUN]

@aashutoshrathi can I take it if hasn't finished?