It was supposed to mean that the block is past its end date but still wasn't read by the user. That turned out to be confusing because although it said "expired", such blocks were active.
Passing `:count => nil` means that i18n.t will return the hash of translations, so use a default value of 0 when checking for hours to prevent this.
Refs #3210
Testing against the translations is not something we do anywhere
else is and is dangerously close to testing the helper against
itself which is a bit pointless.
