update document

doc/XXL-JOB官方文档.md

 - 4、调度中心dispatcher servlet加载顺序优化；
 - 5、执行器回调地址https兼容支持；
 - 6、多个项目依赖升级至较新稳定版本；
-
-注意：最新版本 "XxlJobSpringExecutor" 逻辑有调整，历史项目中该组件的配置方式请参考Sample示例项目进行调整，尤其注意需要移除组件的init和destroy方法；
+- 注意：最新版本 "XxlJobSpringExecutor" 逻辑有调整，历史项目中该组件的配置方式请参考Sample示例项目进行调整，尤其注意需要移除组件的init和destroy方法；
 
 
 ### TODO LIST

doc/db/tables_xxl_job.sql

 #
-# XXL-JOB v2.1.2-SNAPSHOT
+# XXL-JOB v2.1.2
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;

pom.xml

 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.1.2-SNAPSHOT</version>
+	<version>2.1.2</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>

xxl-job-admin/pom.xml

 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.1.2-SNAPSHOT</version>
+		<version>2.1.2</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>

xxl-job-admin/src/main/resources/i18n/message.properties

 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.1.2-SNAPSHOT
+admin_version=2.1.2
 admin_i18n=
 
 ## system

xxl-job-admin/src/main/resources/i18n/message_en.properties

 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.1.2-SNAPSHOT
+admin_version=2.1.2
 admin_i18n=en
 
 ## system

xxl-job-core/pom.xml

 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.1.2-SNAPSHOT</version>
+		<version>2.1.2</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
 	<packaging>jar</packaging>

xxl-job-executor-samples/pom.xml

     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job</artifactId>
-        <version>2.1.2-SNAPSHOT</version>
+        <version>2.1.2</version>
     </parent>
     <artifactId>xxl-job-executor-samples</artifactId>
     <packaging>pom</packaging>

xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml

     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.1.2-SNAPSHOT</version>
+        <version>2.1.2</version>
     </parent>
     <artifactId>xxl-job-executor-sample-frameless</artifactId>
     <packaging>jar</packaging>

xxl-job-executor-samples/xxl-job-executor-sample-jboot/pom.xml

     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.1.2-SNAPSHOT</version>
+        <version>2.1.2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>xxl-job-executor-sample-jboot</artifactId>

xxl-job-executor-samples/xxl-job-executor-sample-jfinal/pom.xml

     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.1.2-SNAPSHOT</version>
+        <version>2.1.2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>xxl-job-executor-sample-jfinal</artifactId>

xxl-job-executor-samples/xxl-job-executor-sample-nutz/pom.xml

     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.1.2-SNAPSHOT</version>
+        <version>2.1.2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>xxl-job-executor-sample-nutz</artifactId>

xxl-job-executor-samples/xxl-job-executor-sample-spring/pom.xml

 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job-executor-samples</artifactId>
-		<version>2.1.2-SNAPSHOT</version>
+		<version>2.1.2</version>
 	</parent>
 	<artifactId>xxl-job-executor-sample-spring</artifactId>
 	<packaging>war</packaging>

xxl-job-executor-samples/xxl-job-executor-sample-springboot/pom.xml

     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.1.2-SNAPSHOT</version>
+        <version>2.1.2</version>
     </parent>
     <artifactId>xxl-job-executor-sample-springboot</artifactId>
     <packaging>jar</packaging>