Block mutation request if vbucket is in hotreload
Block mutation request if vbucket is in hotreload

Change-Id: I3528a2c12f564d909c77ab82efe7ea1e14807e55
Reviewed-on: http://review.membase.org/6356
Tested-by: Bin Cui <ed18693fff32c00e22495f4877a3b901bed09041@gmail.com>
Reviewed-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>

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