CacheWriterTest.shouldWriteThroughRemoveAllSpecific_partialSuccess
removeAll is documented to be unordered in processing, but the test was incorrectly assuming ordering. replaced that validation with non-order validation of partial removal.

Updated Configuration and MutableConfiguration test to use a required feature to validate
the point being tested rather than an optional feature.
Merge branch 'master' of https://github.com/jsr107/jsr107tck