Added first basic author detection thingy

We can find authors based on structured metadata now. If found the
author is logged to the console atm, nothing more.
Refactoring

Cleaned up the strings and functions for the options page to be able to
add new stuff (like blocking authors) to the mix
Options for authors

Authors to warn can now be added. There just isn't a warning yet
typofix

forgot a ,
More , forgotten now remembered
Code cleanup, Storage Format changes

The code has been cleaned up somewhat. Also the storage format changed,
all settings have been put into one associative array. A migration
function _should_ bring all previously stored URLs in line.

This allows me to later add new filters (such as words in content) more
easily.
Fixed display of wrong settings

authors get properly displayed now
Can now detect Authors and warn

Found Author brings a popup (but just with the first author which is
hacky).

I need to define spaces in the overlay to fill upon demand so I can
differentiate between Author trigger and URL trigger (and possibly other
triggers as well).
Redid the popup thingy
Fucking trailing kommas
Fixed display of name