CatacombGL 0.5.3 Beta

New in this release:

• Added emulation of the CRT overscan border. This border can flash when the player gets hit, when destroying an item or when approaching a fake wall. Suggested by @NY00123, dosnostalgic and DiscussMetalDan.
• Added monster, secret and item statistics to the automap (excluding legacy mode). Suggested by yasagani and Mech4Gaming.
• By default the automap has a black background color. However, when the floor color is also black, the automap will now use dark gray as the background color. This helps in making a distinction between explored and unexplored areas. Suggested by Mech4Gaming.
• Added the status messages "Damaging blows" and "Curing".
• A popup is now shown briefly when a game is saved.
• Various fixes.