ISPN-2775 Wrap cachestore "complexTypes" in "elements" so that they
actually can be used as such
Some minor test improvements.
ISPN-2776 MIMECacheEntry should implement equals() properly to allow Cache.replace(oldValue, newValue) to work

Equals compares contentType and data array.
ISPN-2697 Add new flag to force a cache operation to be RSVP'd