Fix Krazy issues with localization. No new strings, but many more strings have context added where requested by the translators and recommended by Krazy in situations where the right translation would be unclear.

Only major code change is in tagrenameroptions.cpp which I don't like in the version either now or before. Now it is more verbose but less of a hack.

Also trackpickerdialogbase.ui required hand editing since Designer doesn't support changing K3ListView columns.