Languages KControl Module patch

[Ben Cooksley]

Further investigating with the help of annma on IRC revealed that it
wasn't the fault of autogen.sh, but of kdesvn-build, which in
attempting to perform a fully out of source build, borked it, and
didn't include the entry.desktop files.

I filed the following bug aganist it:
https://bugs.kde.org/show_bug.cgi?id=190815

Apologies for the disturbance.