Add /at/timestamp

* CSS load is now absolute from /static/
* latest.h is now comic.h
+ /at/timetsamp/ displays a comic
+ /at/* redirects when not found
Added a logger.
We can update previous and next
Config docs
Prev->Next links
Use zrevrangebyscore to get prev
The helper for comic links I forgot
Merge pull request #1 from desert-planet/before-after-random

Before after random