Filter out expired items (optionally?) on get

[Björn Harrtell]

[Anders Revsgaard]

FoxIDs always need to filter out expired item. Therefore, maybe default filter out if optionally.

[Björn Harrtell]

I opted to see this is as an non optional internal fix, done with d4c154e and c4751e8.

That is, API is unchanged and expired items should no longer be included in any result.

[Björn Harrtell]

Released as 0.4.4.

[Anders Revsgaard]

Perfect very nice, FoxIDs is updated to user the new version.