Development version 5.9 released

This is the last development release of the 6.0 version. The main feature of the version is more updates to the game UI: redesigned ship info and knowledge screens and many other small changes to the general look of the game. It also delivers some fixes for bugs. Binaries are available for Linux and Windows (both 64-bit). For more info how to use AppImage on Linux, please see: https://docs.appimage.org/user-guide/run-appimages.html. Below you can find major changes since the last development release:

Added

• Missing option to remember combat orders (GitHub issue #74)

Changed

• Updated interface
• Finished redesign of the ship info and knowledge screens

Fixed

• Hiding enemy ship's info after combat
• Crash on entering the ships combat again
• Crash when trying to load configuration file from older game versions
• Crash when trying to enter the game settings on Windows (GitHub issue #73)
• Crash on showing messages in main menu
• Showing the game statistics on resign from the game
• Position of Close button on the game statistics screen when resigning from
  the game
• Showing the game after reloading it (quit to main menu and load or start the
  game again)
• Crash on damaged engines during fly (GitHub issue #74)
• Crash after victory in combat (GitHub issue #75)
• Crash when player ship crew member die in melee combat
• Setting themes directory via command line arguments
• Hide next turn button after finishing boarding combat
• Crash on finishing deliver item missions
• Showing profit in trade screen
• Counting max sell amount in trade
• Showing sell option when selling is not possible
• Crash when can't accept mission in bases
• Showing info about the selected module when it is upgraded