fix install by plugin command

Author: medcl

config/IKAnalyzer.cfg.xml

@@ -3,9 +3,9 @@
 <properties>
 	<comment>IK Analyzer 扩展配置</comment>
 	<!--用户可以在这里配置自己的扩展字典 -->
-	<entry key="ext_dict">custom/mydict.dic;custom/single_word_low_freq.dic</entry>
+	<entry key="ext_dict"></entry>
 	 <!--用户可以在这里配置自己的扩展停止词字典-->
-	<entry key="ext_stopwords">custom/ext_stopword.dic</entry>
+	<entry key="ext_stopwords"></entry>
 	<!--用户可以在这里配置远程扩展字典 -->
 	<!-- <entry key="remote_ext_dict">words_location</entry> -->
 	<!--用户可以在这里配置远程扩展停止词字典-->

config/custom/mydict.dic

@@ -8,28 +8,28 @@
     <fileSets>
         <fileSet>
         <directory>${project.basedir}/config</directory>
-            <outputDirectory>/config</outputDirectory>
+            <outputDirectory>elasticsearch/config</outputDirectory>
         </fileSet>
     </fileSets>
 
     <files>
         <file>
             <source>${project.basedir}/src/main/resources/plugin-descriptor.properties</source>
-            <outputDirectory></outputDirectory>
+            <outputDirectory>elasticsearch</outputDirectory>
             <filtered>true</filtered>
         </file>
     </files>
     <dependencySets>
         <dependencySet>
-            <outputDirectory>/</outputDirectory>
+            <outputDirectory>elasticsearch</outputDirectory>
             <useProjectArtifact>true</useProjectArtifact>
             <useTransitiveFiltering>true</useTransitiveFiltering>
             <excludes>
                 <exclude>org.elasticsearch:elasticsearch</exclude>
             </excludes>
         </dependencySet>
         <dependencySet>
-            <outputDirectory>/</outputDirectory>
+            <outputDirectory>elasticsearch</outputDirectory>
             <useProjectArtifact>true</useProjectArtifact>
             <useTransitiveFiltering>true</useTransitiveFiltering>
             <includes>