identify
finish writing access log
finish writing access log
nothing!just a test!
finish the identify module preliminarily
simple modify
Merge branch 'master' into identify

Conflicts:
	.gitignore
	src/main/java/cn/edu/sjtu/se/kvstore/common/Data.java
	src/main/java/cn/edu/sjtu/se/kvstore/db/KVstore.java
	src/main/java/cn/edu/sjtu/se/kvstore/utils/InputHandler.java
	src/main/scripts/kvstore_env.sh
test
Merge branch 'master' into identify

Conflicts:
	src/main/java/cn/edu/sjtu/se/kvstore/common/ColdCluster.java
	src/main/java/cn/edu/sjtu/se/kvstore/common/HotCluster.java
	src/main/java/cn/edu/sjtu/se/kvstore/db/KVDaemon.java
finish integration!
modify Data.java
Completement!
improve key searching method