PCBC-246 Add support for LCB_CNTL_SKIP_CONFIGURATION_ERRORS_ON_CONNECT

Change-Id: Ib3a165a9d8d5eadc951771e0cf6fbfa66969c251
Reviewed-on: http://review.couchbase.org/28566
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>