Prepare 2.0.1 Release

Change-Id: Ie598021ecf39e980eaaabe1408f6f703b78dd115
Reviewed-on: http://review.couchbase.org/42739
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Reviewed-by: Simon Baslé <simon@couchbase.com>