地址： http://maven.apache.org/plugins/maven-assembly-plugin/index.html
打包类型 ：
- zip
- tar
- tar.gz (or tgz)
- tar.bz2 (or tbz2)
- tar.snappy
- tar.xz (or txz)
- jar
- dir
- war
- and any other format that the ArchiveManager has been configured for
打包的参考： http://maven.apache.org/plugins/maven-assembly-plugin/examples/index.html