Added a search button, with its callback.

Once I am able to get some values into the DB, the "remember" function
can be tested... and the list linked.
Adding google books binding (first draft)

Right now using a (gitignored) secret key. Will refine as soon as the
basic system proves to be viable.
First actual service calls succeeded.

Now, results need to be parsed, plumbing needs to be fixed and API keys
need to be moved from "secret mode" to something more viable.
Added JSON parsing code

This concludes the preliminary stages. Now we should be able to query
google books, and do something with the results. Fingers crossed.
Added keyfile - without the key, of course.
Added keyfile to assume-unchanged
Added save functionality to the details view