sync with upstream ycsb

Makefile

resources/project.properties

src/refit/application/ycsb/REFITYCSBBenchmark.java

src/site/ycsb/BasicDB.java

src/site/ycsb/BasicTSDB.java

src/site/ycsb/ByteArrayByteIterator.java

src/site/ycsb/ByteIterator.java

src/site/ycsb/Client.java

src/site/ycsb/ClientThread.java

src/site/ycsb/CommandLine.java

src/site/ycsb/DB.java

src/site/ycsb/DBException.java

src/site/ycsb/DBFactory.java

src/site/ycsb/DBWrapper.java

src/site/ycsb/GoodBadUglyDB.java

src/site/ycsb/InputStreamByteIterator.java

src/site/ycsb/NumericByteIterator.java

src/site/ycsb/RandomByteIterator.java

src/site/ycsb/Status.java

src/site/ycsb/StatusThread.java