Motivation:
Derefs are not necessarily their referents.
This is the case for Send, for instance.
Modification:
The Deref.isInstanceOf method is renamed to referentIsInstanceOf.
And a Send.isSendOf method has been added, that simplifies the check for sends, since it could be the case that one also needs to check if the object in question is also a Send instance.
Result:
Cleaner code that is easier to read, when working with Sends.
This fixes https://github.com/netty/netty-incubator-buffer-api/issues/46
Then run those tests in independent surefire forks.
This should allow Maven to hold on to less test metadata, and cope better with the large number of tests.
