Also fix some bad filename and extension in epub's OEBPS/content.opf,
Store image files (jpg, png, gif) uncompressed in the .epub as they
don't need compression.
crengine may now give us multiple authors (if multiple <dc:creator>
in epub metadata) separated by \n.
Deal with that where needed.
Limit the number of authors displayed in coverbrowser views.
Bumped base/crengine: multiple <dc:creator> + fix mobi images order
Bumped base: util.runInSubProcess(): give child its own process group
When no manually added specific 'poweroff' or 'reboot' screensaver
settings, use the suspend/sleep settings set via menu with an added
overlay message in top right corner.
Generalized some settings: "White background behind message and images"
and "Stretch covers and images to fit screen", and move "Exclude this
book's cover from screensaver" up a level (and remove this menu item
added by ReaderMenu when closing document).
Don't use memory cache with rendered screensaver images.
ImageWidget: fix wrong behaviour (stretch) when 'file', 'width',
'height' and 'scale_factor' provided: now, keep aspect ratio.
ImageWidget: increase file image mem cache (mostly used for icons)
from 2 to 5MB to be ready for devices with very high DPI.
(each one at top right of each page)
Such images can be loaded dynamically when the display of a page requires it.
Allow alternating between the image and its title with Tap on it.
Allow for viewing this image zoomed in ImageViewer with Hold on it.
DictQuickLookup: add generic support for result.images, that
could optionally be provided in Wikipedia lookup results.
New TrapWidget: invisible full screen widget for catching UI events. Can
optionally display a text message at bottom left of screen (ie: "Loading..."),
used by default by Trapper:dismissable functions when no widget provided.
Added Trapper:dismissableRunInSubprocess() to run a lua function in
a sub-process, allowing it to be dismissed, and returns its return
value(s).
Configure number of items per page (from 6 to 24) - default is 14
Allow filenames to wrap so that we can see the full name
Used by File browser, History, Search Result, Bookmarks, Table of contents (only single line), File chooser, OPDS catalog
* Adds a generic HTML widget modeled after the text widget, and HTML dictionary support. HTML dictionaries can have their own CSS (for X.ifo it must be X.css). The base CSS just resets the margin and sets the font.
Note that the widget doesn't handle links, that wasn't needed for the dictionary.
Closes <https://github.com/koreader/koreader/issues/1776>.
* Show tag stripped HTML if the dictionary entry isn't valid HTML
* Simulate the normal <br/> behavior
* Bump base
in relative page turning in skim, errors appear when page number is less than 10, and you press -10 in skim it gives warning and the page doesn't change, this happens in pdf.
"update" method solves this if it comes first.
Use "message" as the default for screensaver (instead of "disable") (https://github.com/koreader/koreader/pull/3535#issuecomment-353337143)
On Kobo
Fix: display message on poweroff or reboot (https://github.com/koreader/koreader/pull/3535#issuecomment-352355865)
Allows for overwritting these default messages with the classic screensaver settings, by just prepending "poweroff_" or "reboot_" to them. (https://github.com/koreader/koreader/pull/3535#issuecomment-352498497)
So one can manually add to its settings.reader.lua:
```
"poweroff_screensaver_type" = "random_image" or "message", "cover", "bookstatus", "readingprogress", "disable",
"poweroff_screensaver_dir" = "path to same as screensaver_dir or alternate dir for poweroff image(s)",
"poweroff_screensaver_message" = "message to use instead of Powered off",
```
```
"reboot_screensaver_type" = "random_image" or "message", "cover", "bookstatus", "readingprogress", "disable",
"reboot_screensaver_dir" = "path to same as screensaver_dir or alternate dir for reboot image(s)",
"reboot_screensaver_message" = "message to use instead of Rebooting...",
```
Partial, as it will safe the state when suspending the reader by pressing the power-button.
However, it will still not safe the state when Pocketbooks autoPowerOff-Feature kicks in, as this does not create an event (e.g. no EVT_BACKGROUND) of any kind.
* Clean up device.lua
* Save state on suspend
