This is a beta version to test some new features and fixes:
- Improved temporary folders creation and cleanup.
 - Added F2 as a shortcut to show the current file's properties in the reader.
 - Added options to change the quality parameter used when encoding each type of image file format to the advanced section of some tools and removed the generic image quality one.
 - Added an option to enable mozjpeg when encoding JPGs to the advanced section of some tools.
 - Updated some of the core libraries to newer versions.
 - Made running more than one instance of the app at the same time not possible. This is needed to prevent problems with the temp folder, settings and history management.
 - Fixed last fullscreen state not being correctly saved in the settings some times.
 - Fixed the conversion tool's cancel button not working correctly in some cases.