fix TTL overflow and some refactorings
Fixed classloading if classes are not in the default classloader but tccl
Merge pull request #2305 from eminn/fix/TTLOverflow-master

fix TTL overflow and some refactorings
Merge pull request #2306 from noctarius/fix-classloaderutil-master

Fixed classloading if classes are not in the default classloader but tccl
mark submitCallableToMember_withMultiExecutionCallback as problematic
Merge branch 'master' of https://github.com/hazelcast/hazelcast
Added fail calls to make sure exception is thrown