Reverted language-selector and desktop seed in raring

[Adam Conrad]

Hey guys, just letting you know that I reverted the recent seed
change and language-selector upload, as the im-config transition
is going to need an MIR.

I suspect that im-config itself will only need a cursory review,
but please do file an MIR and get it done properly.  It also
pulls in a new dep (dialog), which will need an MIR filed for
it as well.  Please don't re-seed or undo the language-selector
revert until this is done.

... Adam