- the language and LC settings migrate from page to config
- add API for explicitly setting language (which is then preserved
when clicking new locations)
- since Config knows what settings there are, it should create the
jobs to run later -- not the Page.
- this doesn't work yet, because the Config does **not** know what
the selected timezone is yet.
The Config object wasn't being used at all in the locale module;
reset it to empty and start using it in locale, so that
configuration functionality can be added to it as-needed,
and with the necessary refactoring built-in.
