Disabled unstable tests in NotifyingFutureTest
ISPN-4116 Upgrade Apache Avro to 1.7.5, and so converge the dependency usage

Also improve our implementation a bit by using the new Factory static helpers
Merge branch 'master' of https://github.com/infinispan/infinispan
@Test for OpenHFT SharedHashMapBuilder.create() returned ref being used as OffHeapDataContainer