Add or Update License Headers
CSHARP-165 Add an address translator
Merge branch '2.1' of https://github.com/mfiguiere/csharp-driver into 2.1-license
Merge branch 'master' of https://github.com/dtretyakov/csharp-driver into translator

Conflicts:
	src/Cassandra/HostConnectionPool.cs
Minor test and tracing fixes for CSHARP-165