v0.8

Added:

• update repository in background once a day (default on)
• update repository on opening (default off)
• support Android 10
• dark theme
• animations when changing activities
• placeholder images (thanks to https://vk.com/neudd)

Changed:

• update INSTEAD 3.3.1
• update SDL 2.0.10 (and patch https://hg.libsdl.org/SDL/rev/131ea7dcc225), SDL2_image 2.0.5, SDL2_mixer 2.0.4, SDL2_ttf 2.0.15

Fixed:

• fixed crash when updating the repository