Reinstate 3 failing CacheExpiryTest after merging outstanding RI pull request 30 (which has fix for failures)

Must merge following outstanding pull request in RI before merging this pull request into TCK.

https://github.com/jsr107/RI/pull/30

Confirmed that 3 failing tests are failing against current RI and passing vs my outstanding proposed pull request
https://github.com/jsr107/RI/pull/30.  Note that this pull request was requested prior to jsr 107 tck test that required it.