ISPN-4516 Upgrade to Spring 3.2.9 and ISPN 7, enabled tests, remove unused code
ISPN-4543 Formatting
Delete unused file
ISPN-3480 Remove unused protobin files
ISPN-4306 Properly create the RealmUser when obtaining credentials over GSSAPI
Move ClusteredCacheWithLongIndexNameTest to "unstable" group
ISPN-1951 Use MERGE3 in the default UDP configuration

TEST_PING needed some changes, as MERGE3 doesn't trigger Discovery.findMembers()
Smaller timer pool and queue.
Still causes lots of failures.