GS-11356 Explicitly set class loader for object serializer

git-svn-id: svn://pc-lab14/SVN/xap/trunk/openspaces@153056 eb64e737-3616-4df0-8941-5ee2ae88103d
GS-803 Build version advanced to 10483-328

git-svn-id: svn://pc-lab14/SVN/xap/trunk/openspaces@153057 eb64e737-3616-4df0-8941-5ee2ae88103d