"color" can make use of the sprite's alpha texture, and the "add_color"
effect will now take the original image's alpha into account.
Remove the no longer needed "unaffordableMask" images on a variety of
panels.
Somewhat based on a patch by BoeseRaupe. Fixes#2421 and #3688.
This was SVN commit r17456.
Mount public in case we are starting Atlas and no mods are specified in
the config.
If users remove all mods and save this to the config and try to start
Atlas it will
crash, as it cannot find some needed files.
This was SVN commit r15678.
wraitii