Haketilo

make settings_query.js use storage object passed as an argument

extract observables implementation from storage.js

add ability to query page content from repo and display it in the popup

store repository URLs in settings

remove unused variables

Merge rebranding to "Hachette"

fix page info server bugs

Merge commit 'ecb787046271de708b94da70240713e725299d86'

Refer to the extension consistently as "Hachette" and remove TODOS.org
from the copyright file

Streamline and harden unique values/settings

The base URL is now included in the settings. The unique value no longer uses
it directly, as it is included by virtue of the settings; however, the number
of full hours since the epoch (UTC) is now incorporated.