Order repos by date updated

This is what github.con does, and will be good to do instead of alphabetical order.

[andrewda]

Date updated, that is. Yes I totally agree that they should be ordered this way rather than alphabetically (by default, at least).

@andrewda, I like how you said "by default". Maybe there could be an option in settings to change this.

[andrewda]

That's what I was thinking. Though I'm not sure how useful it'd be.

[housseindjirdeh]

Agreed, let's start with just sorting it by date updated. If whoever takes this on wants to go ahead and add an option to toggle between the two in the user settings screen that would be awesome, but something we can do at at a later point :)

[chinesedfan]

I just submitted my first PR, #300, to this project by changing the sort method, but without a new option in user settings screen. Hope it can help. :)