Nano paper update!

* remove [img] from paper
* fix paper not having the help button
* add nano paper and nano paper dispenser
* nano paper can display images and videos
* add a nano paper dispenser in the librarians office
* nano paper dispenser can be made in R&D

![](http://i.imgur.com/7mhqKCR.png)

Sprites by ancientpower
This logging should be done inside of the Run() for the regex callback so the URL is logged.  See /datum/speech_filter_action/bbcode/img for an example.