Make it easier to wrap methods

Change-Id: I0619c4ff85cf74696009e3406ea994ba8dde17ac
gcouchbase: IOPS perf improvements

Change-Id: I979755c0dea203c76d6bc3bebfdac77725064eec
gcouchbase: performance improvements and view API

Change-Id: Ib87eb5578718039f998a7d02bcf08c2e1b9fd7f9
Use new API wrapping methods in couchbase.Connection

Change-Id: I53796acae6e76dbe3ace915ff22ba0680bc0ec82