[修改] 修改版本号为3.2.21

Author: AlianBlank

package.json

@@ -1,7 +1,7 @@
 {
   "name": "com.gameframex.unity.google.protobuf",
   "displayName": "Google Protocol Buffers",
-  "version": "1.0.0",
+  "version": "3.2.21",
   "unity": "2017.1",
   "description": "Google Protocol Buffers",
   "author": {
@@ -13,6 +13,5 @@
     "url": "https://github.com/protobuf-net/protobuf-net.git"
   },
   "relatedPackages": {},
-  "dependencies": {
-  }
-}
+  "dependencies": {}
+}