ISPN-4645 Many XSD default values do not match the defaults from the
corresponding configuration builder

Updated XSD and server code for state transfer chunk size property
default value
ISPN-4858  SoftIndexFileStoreTest.testStoreAndRemove random failures
ISPN-4819 Fix the pages that are shown when connecting to the management port
ISPN-4784 TestResourceTracker not working properly for OSGi tests
ISPN-3938 AdvancedAsyncCacheLoader.process() concurrency issues

Simplify ExecutorAllCompletionService to track the tasks itself instead of
using an ExecutorCompletionService.