[modules/urlutils] Use requests lib for http requests, instead of urllib

[StarlitGhost]

http://docs.python-requests.org/en/latest/

It looks much nicer to use.
The only reason I haven't for PyMoronBot is that so much existing code would have to change.

[HubbeKing]

This. Yes. All of my yes.

[HubbeKing]

We'd have to redo the urlutils module, but that's not that much work. Should become simpler too. Also that module should have a method for posting stuff to paste.ee, IMO.

[Heufneutje]

Posting stuff to a pastebin has nothing to do with URL loading. It should be its own module. Other than that, that request library does look nice. Should be easy to change the url loading module to use it.

[StarlitGhost]

Well, I implemented these changes in af71d0c.

Exception handling still needs some work for better log messages though, it was getting late last night so I didn't check out what the exceptions contain. Once that's done this can be closed.

[Heufneutje]

Keeping this open. Most likely we will be using this library for the 2.0 module as well.