Inline translation fixing
It would be good to be able to fix translations at the moment you see they are wrong. This means a link to the translation editing (or better an edit box on the page) should be available.
I've written a patch to start with this. It collects all translations that are used on the page (calls to get_lang) and puts them in an array. For now, I output this array in the footer for debugging. Ideally it would be a pop-up like the help and bug report links, or an overlay, with links or edit boxes. Also, it should probably only be shown when using an "editable" language (that is, a locally created variant).