[1.1] Mods with only Language files isn't considered content

[SineSwiper]

If a mod only has language files, RimWorld complains with an error message of:

X did not load any content. Following load folders were used:

It should consider Language files to be content, or allow a XML switch to tell Core that the content is just a Language directory.  You can put a 1x1 png in Textures to silent the error, but that seems more of a hack.

There are a lot of "translation of X" mods out there, and possibly some unofficial translations that might be hit by this bug.