KOReader 2018.12

**The OTA update code was unprepared for point releases (such as v2018.11.1), but OTA updating to v2018.12 should be problem-free.**

We'd like to thank all contributors for their efforts. Some highlights since the previous release include:

* bump crengine: fix vertical-align and others (koreader#4307) @poire-z
* [fix] Version pattern: add two extra numbers for point release (koreader#4308) @Frenzie
* [Feature] Support DjVu metadata (koreader#4314) @xelxebar
* Fix footnote size after screen rotation (koreader#4316) @poire-z
* [fix, cervantes] Old Cervantes devices should return false for hasNaturalLights (koreader#4320) @frio
* [Cervantes]: misc fixes & improvements (koreader#4321, koreader#4341 ) @pazos
* Initial Kobo Forma support (koreader#4325) @NiLuJe
* Support the Kindle PW4 (koreader#4324) @NiLuJe
* Bump crengine: fix segfault and CSS classname check (koreader#4327) @poire-z
* Fix a few edge cases crashes and issues (koreader#4334) @poire-z
* Double-tap chapter nav: add origin page to location stack (koreader#4339) @poire-z
* Wallabag fixes and improvements (koreader#4347) @y-muller
* Fix frontlight sysfs path on the PW4 (koreader#4350) @NiLuJe
* [UX] ConfigDialog: larger tap area around font and icons (koreader#4351) @poire-z
* CreDocument: fix document loading interferences (koreader#4349) @poire-z
* [fix, Android] libjpeg-turbo crash on Android <=4.x (koreader#4352, koreader#4355) @Frenzie
* [fix, Android] Android 2.3 getScreenSize crash (koreader#4356) @Frenzie
* [Cervantes]: waveforms & flags koreader/koreader-base#763 @pazos
* Add support for PocketBook 630 (koreader#4357) @mbab
* [UX] Add paragraph whitespace/indent style tweaks (koreader#4358) @Frenzie
* Added support for pb627 (touch lux 4) (koreader#4362) @wsotest
* [fix] Ensure "Open last/previous" point to existing files (koreader#4367) @poire-z
* Lower file suffix (koreader#4369) @NiLuJe
* [UX] Set timeout for wifi result info message (koreader#4371) @avsej
* [fix] MuPDF: set default DPI-based EPUB fontsize (koreader#4372) @Frenzie

[Full changelog](koreader/koreader@v2018.11...v2018.12)

v2018.11.1: Hotfix for v2018.11 release

Broken version check. See main release <https://github.com/koreader/koreader/releases/tag/v2018.11> for updated binaries.

KOReader 2018.11 "An die Freude"

![koreader pdf](https://user-images.githubusercontent.com/202757/47815450-adee5500-dd50-11e8-89b5-60decfa81b06.png)

**Twenty-five years ago today, the [Maastricht Treaty](https://en.wikipedia.org/wiki/Maastricht_Treaty) took effect. So let's take a moment to enjoy [the Anthem of Europe](https://www.youtube.com/watch?v=a23945btJYw) before moving on to regular business.**

**This release introduces support for BQ/Fnac devices, ported by @pazos ([koreader#4294](koreader#4294 More information about how to turn your device into an open Linux reader can be found [here](https://blog.bq.com/es/bq-ereaders-developers-program/). You will have to replace `/etc/rc.local` with the content of `koreader-standalone.sh`. We hope this sparse documentation will suffice for the moment, because we really wanted to include all of these devices in this release!

**Going forward, the tagged releases on GitHub will be considered stable, unless otherwise indicated by a suffix such `-beta` or `rc`.** Hopefully this will remove user confusion about which release to use, particularly since new users will often be on newer devices that require a recent version (koreader#4292).

The many changes since the last stable release are too numerous to mention or do justice. There were many visible changes, but even more under the hood. A few that stand out to me personally include:
* Visual feedback during OTA updates on Kobo and Kindle devices ([v2018.07.29-beta](https://github.com/koreader/koreader/releases/tag/v2018.07.29-beta))
* Our new logo ([v2018.06.02-beta](https://github.com/koreader/koreader/releases/tag/v2018.06.02-beta))
* Natural light, the AppImage, and defaulting to CoverBrowser view ([v2018.04.10-beta](https://github.com/koreader/koreader/releases/tag/v2018.04.10-beta)
* Natural light ([v2018.03.14-beta](https://github.com/koreader/koreader/releases/tag/v2018.03.14-beta))
* HTML dictionaries ([v2018.01.10-nightly](https://github.com/koreader/koreader/releases/tag/v2018.01.10-nightly))
* DjVu on Android ([v2017.10.23-nightly](https://github.com/koreader/koreader/releases/tag/v2017-10-23-nightly))
* Color on supported devices ([v2017.10.04-nightly](https://github.com/koreader/koreader/releases/tag/v2017.10.04-nightly))
* The ability to swipe instead of tap for menus ([v2017.04.30-nightly](https://github.com/koreader/koreader/releases/tag/v2017.04.30-nightly))
* And so much more…

We'd like to thank all contributors for their efforts. Some highlights since the previous beta release include:

* Style tweaks: adds 2 page break related tweaks (koreader#4259) @poire-z
* cre highlights: draw segments instead of word boxes (koreader#4259) @poire-z
* Selection menu: allow viewing HTML (koreader#4259) @poire-z
* [Key navigation] The back key can be used to go to the parent folder. (koreader#4264)
* EPUB links: show footnotes in popup, larger tap area (koreader#4261) @poire-z
* bump cre: allow non-word chars in text selection (koreader#4267) @poire-z
* decouple UI from core document code (koreader#4269) @houqp
* Wallabag plugin (koreader#4271) @y-muller
* [Non-touch] Add a menu item to toggle a bookmark on the current page (koreader#4262) @onde2rock
* Fix default not being used for View mode and Progress bar (koreader#4268) @poire-z
* WebDav CloudStorage (koreader#4272) @y-muller
* [UX] Display the author in OPDS catalogs. (koreader#4278) @y-muller
* View HTML: adds Prettify button to CSS viewer (koreader#4282) @poire-z
* [chore] Refactor sysfs_light (koreader#4283) @pazos
* [build, AppImage] Update to AppImageTool 11 (koreader#4288) @Frenzie
* [feat] Smaller version on annotated tag (koreader#4295) @Frenzie
* [feat] Add support for BQ/Fnac devices (koreader#4294) @pazos

[Full changelog](koreader/koreader@v2018.10.07-beta...v2018.11) (since previous beta)
[Full changelog](koreader/koreader@v2015.11-stable...v2018.11) (since previous stable)

[UX] Show OTA updates only on supported devices (koreader#4256)

Tweak/unbreak my CPUFreq experiment (koreader#4119)

* Only switch to ondemand when we actually can, and when it's better than the current governor...
  This potentially leaves Mk.5 in the lurch, but there's no perfect solution there :/.

* Switch to UI for the unmark event of navigation hints markers
Might help on non-REAGL devices, and doesn't hurt there (re koreader#3983).

* Switch SQLite DBs to WAL
Sounds nice in theory, behaves fine in practice.

Fix unit tests after crengine update (koreader#3993)

bump base for: [fix, build] AppImage use `-mtune=generic -march=x86-6…

…4` (koreader#3867)

Fixes koreader#3853.

[build] AppImage: support creation in Docker container (koreader#3852)

device/kobo/powerd: Read natural light configuration

Define 'frontlight_settings' table for all Kobo devices, and read
configuration from settings file.

frontlightwidget: Add widgets for changing 'warmth' if available

If the device supports natural light (currently only KA1), extend the
frontlight widget to also allow for changing the 'warmth' value. We
more or less duplicate the widget for 'brightness', with the exception
that we drop the 'toggle' button, which does not make much sense for
the frontlight's warmth. Also, we add captions 'Brightness' and
'Warmth' for clarity.