Package seimicrawler project so that can be fast and standalone deployed.It is based on maven-war-plugin and modified. 这是专为SeimiCrawler工程专门定制的一个maven发布工具，意在简化开发者项目发布与部署流程。本插件是基于Apache的maven-war-plugin修改而来，依然采用Apache License Version2.0发布。