Fix a missing word in the documentation

The sentence doesn't make much sense without it.
Add test for cluster init with failing contact points (JAVA-522).
Don't run updateCreatedPools during session initialization (JAVA-522).
Mark failing contact points down in control connection init (JAVA-522).
Don't trigger onAdd in Cluster.Manager.init (JAVA-522).
Parallelize pool creations when creating the first session (JAVA-522).
Rename method.
Clean up unsubmitted futures at shutdown.

This can cause thread starvation in some cases.
Properly close sockets in FakeHost.
Fix token awareness for case-sensitive keyspaces (JAVA-526).
Fix token awareness for case-sensitive tables (JAVA-526).
Don't rely on time in test for cluster init optimization (JAVA-522).
Check maximum number of values passed to SimpleStatement (JAVA-515).
Expose the driver version through the API (JAVA-532).
Update changelog for 522.