CBD-49 Test non-ASCII keys for store and get in ep-engine
CBD-49 Test non-ASCII keys for store and get in ep-engine

In ep_testsuite, store keys that cannot be represented by ASCII,
e.g. keys in Chinese, Korean, or Russian language. Ep-engine
should treat them just as binary byte array.

Change-Id: I738b16b3959427c720b1710fc5ca761c6f829bde
Reviewed-on: http://review.couchbase.org/17481
Reviewed-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>
Tested-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>

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