Fix for jsr107tck-40 issue: make CacheExpiryTests verifying getExpiry call table less rigid
https://github.com/jsr107/jsr107tck/issues/40
Merge pull request #41 from jfialli/fixCacheExpiryTestJsr107tckIssue40

Fix for TCK Issue #40: make CacheExpiryTest counting getExpiry calls less rigid