MB-5981 Include config.h as the first file
MB-5981 Include config.h as the first file

Change-Id: I752b2180adf8cb7a9eed481366725b88c6e96c3d
Reviewed-on: http://review.couchbase.org/18673
Tested-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>
Reviewed-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>

couchbase/ep-engine,membase/ep-engine,owendCB/ep-engine,teligent-ru/ep-engine,hisundar/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,owendCB/ep-engine,owendCB/ep-engine,membase/ep-engine,daverigby/ep-engine,jimwwalker/ep-engine,membase/ep-engine,abhinavdangeti/ep-engine,jimwwalker/ep-engine,sriganes/ep-engine,hisundar/ep-engine,couchbase/ep-engine,sriganes/ep-engine,daverigby/ep-engine,couchbase/ep-engine,teligent-ru/ep-engine,daverigby/kv_engine,daverigby/ep-engine,membase/ep-engine,abhinavdangeti/ep-engine,hisundar/ep-engine,jimwwalker/ep-engine,daverigby/ep-engine,daverigby/kv_engine,abhinavdangeti/ep-engine,couchbase/ep-engine,daverigby/kv_engine,sriganes/ep-engine,teligent-ru/ep-engine,sriganes/ep-engine,owendCB/ep-engine,hisundar/ep-engine,daverigby/kv_engine,teligent-ru/ep-engine,jimwwalker/ep-engine