set version to 2.1

pxb1988 · pxb1988 · commit b12d69cb64ce · 2021-10-30T00:21:19.000+08:00
diff --git a/build.gradle b/build.gradle
@@ -3,7 +3,7 @@ allprojects  {
   apply plugin: 'idea'
   apply plugin: 'eclipse'
   group = 'com.googlecode.d2j'
-  version = '2.1-SNAPSHOT'
+  version = '2.1'
 }
 
 defaultTasks('clean','distZip')
