The code path for setting the locale / language automatically
emits currentLanguageStatusChanged(), but the code that updates
GS connects to currentLanguageCodeChaged(). This was altered in
the 3.2.28 release cycle. Since then, automcatic locale selection
wasn't setting *locale* in GS, so that a click-through kind of
locale selection would not set it; then the packages module
has no *locale* setting for localization packages.
The combination of status and code signals (machine- and human-
readable) is ok. Introduce a setter to the language that does
the necessary signalling, so that setting the language automatically
also DTRT.
FIXES#1671
ea61ac4386