- update to 2.5:
* add: chromecast support (using pychromecast)
* add: new startup checks
* add: new dialog informing user of new install/update
* add: convert settings, shortcuts, and contextmenu from file based to database based
* add: command line option to check and attempt to fix configuration
* add: command line option to reset settings/shortcuts to defaults
* add: dialog to show debug/log messages
* add: second desktop file for standalone mode
* improve: better handling of threading for loading images
* improve: scrolling by mouse no longer flicks view resulting in better handling
* improve: handling of imageformats
* improve: use image providers for setting background image
* improve: reorder mainmenu entries
* improve: copying of image to clipboard
* improve: default startup message, don't show file dialog automatically
* improve: context menu now standalone window and thus not confined to PhotoQt window
* improve: graceful fail when ffmpegthumbnailer not available for video files
* improve: filename inside archives shown on labels in mainview
* improve: enable build with Exiv 0.25
* improve: 'Escape' by default calls __open
* fix/improve: export/import of old and new backup files
* fix: settingsmanager, handling of modal windows
* fix: picking color did not handle the absence of transparency well
* fix: external shortcuts close PhotoQt when 'close' option set
* fix: zoom-to-position failed in multi-monitor setup when last-left monitor is not used
* fix: executing external app by shortcut failed handling placeholders
* fix: slideshow with many images in many subfolders
* fix: escape html tags in filenames shown on tooltips/labels
* add: zoom/pinch to position