TODO

* Pull book details from Amazon and set as props.
* Add language, edition, category and abridged props.
* Show the library by year/month.
* Show library by category/tag.
* Replace book page by post.
* Rate.
* Icons for Book status.
* Use calendar UI for dates.
* Search filter is appending to URL.
* Show number of books visible from total in Manager.
* Add more links to the manager page to add books.
* When pulling cover art, upload them and host them locally.
* Support changing cover art size.
* Support import/export of books.
* Add admin menu.
* Add reading progress.
* Update translations.
* Remove all explicit includes.
* Replace options with automatic handling.

- Library search broken and unlike manage-books search.
- Choose what to show in the Widget.
- Show statistics in Library.
- Public/Private visibility.
- Hide added dates.
- Link authors in the Manager page to filter by that author only.
- Filter by Read/Reading/OnHold in the manager.
- FAQ: file_get_contents needs allow_url_fopen.

Performance:

* Delayed/background image loading.

Progress:

<div style="border-style:solid;border-width:1px;border-color:#c0c0c0;background-color:#f0f0f0;width:100px;height:1.5em;">
<div style="position: absolute; background-color: #008000;width:50px;height:1.5em;"></div>
<div style="position: absolute; font-weight:bold;width:100px;height:1.5em;text-align:center;z-index: 10;">5&nbsp;/&nbsp;128</div>
</div>