batch update don't fill primarykey
Merge remote-tracking branch 'origin/master'

Conflicts:
	xutils/src/main/java/zcu/xutil/sql/DBTool.java
	xutils/src/main/java/zcu/xutil/sql/EntityMap.java
	xutils/src/test/java/zcu/xutil/sql/QueryTest.java
merge
sync
refactor