make 's' translatable in stats

thanks to "lumininous spice" for the heads up
work around a font issue on osx10.9
fix reversed check in media
tweak logging

- log only sched getCard(), not all getCard calls
- don't log sched.today unless it's changed
don't terminate review abruptly when sibs removed from queue
fix an issue where non-new cards were not reset on export

only happened for cards in a filtered deck