no message
kvserver almost done
testing vlass
Merge remote-tracking branch 'CloudDB/master'
it 0b0196218e717ec1bc1b11de0d708381f585836b.

Conflicts:
	ScalableStorageService/src/app_kvServer/KVCache.java

Conflicts:
	ScalableStorageService/src/app_kvServer/KVCache.java
	ScalableStorageService/src/app_kvServer/KVServer.java