父层jar包版本控制，管理配置

<!-- 集中定义依赖版本号 -->    <properties>        <junit.version>4.12</junit.version>        <spring.version>4.2.4.RELEASE</spring.version>        <pagehelper.version>4.0.0</pagehelper.version>        <servlet-api.version>2.5</servlet-api.version>        <dubbo.version>2.8.4</dubbo.version>        <zookeeper.version>3.4.7</zookeeper.version>        <zkclient.version>0.1</zkclient.version>        <mybatis.version>3.2.8</mybatis.version>        <mybatis.spring.version>1.2.2</mybatis.spring.version>        <mybatis.paginator.version>1.2.15</mybatis.paginator.version>        <mysql.version>5.1.32</mysql.version>        <druid.version>1.0.9</druid.version>        <commons-fileupload.version>1.3.1</commons-fileupload.version>        <freemarker.version>2.3.23</freemarker.version>        <activemq.version>5.11.2</activemq.version>        <security.version>3.2.3.RELEASE</security.version>        <solrj.version>4.10.3</solrj.version>        <ik.version>2012_u6</ik.version>    </properties>​    <dependencyManagement>        <dependencies>​            <!-- Spring -->            <dependency>                <groupId>org.springframework</groupId>                <artifactId>spring-context</artifactId>                <version>${spring.version}</version>            </dependency>            <dependency>                <groupId>org.springframework</groupId>                <artifactId>spring-beans</artifactId>                <version>${spring.version}</version>            </dependency>            <dependency>                <groupId>org.springframework</groupId>                <artifactId>spring-webmvc</artifactId>                <version>${spring.version}</version>            </dependency>            <dependency>                <groupId>org.springframework