Merge pull request #494 from didi/dev

1、打包时自动生成版本信息及git提交信息；2、优化swagger对版本信息的获取；

kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/utils/ConfigUtils.java

@@ -20,7 +20,4 @@ public class ConfigUtils {
 
     @Value(value = "${spring.profiles.active:dev}")
     private String kafkaManagerEnv;
-
-    @Value(value = "${spring.application.version:unknown}")
-    private String applicationVersion;
 }