Add build support with VS2015 Community Edition
Add build support with VS2015 Community Edition

Change-Id: I5a7527f31c809504a7693092951afad6c69afa46
Reviewed-on: http://review.couchbase.org/53547
Reviewed-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>
Tested-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>

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