IN PROGRESS - BATCH-971: add database writers to iosample

migrate ibatisJob to iosamples
fixed AbstractPagingItemReader to reset its state on close()

spring-batch-samples/src/test/resources/org/springframework/batch/sample/IbatisJobFunctionalTests-context.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<beans xmlns="http://www.springframework.org/schema/beans"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="
-		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
-
-	<import resource="classpath:/simple-job-launcher-context.xml" />
-	<import resource="classpath:/jobs/ibatisJob.xml*" />
-
-</beans>