Merge pull request #131 from dxwts/develop

修改文件类型arm为amr

Author: chanjarster

weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxConsts.java

@@ -105,7 +105,7 @@ public class WxConsts {
   ///////////////////////
   public static final String FILE_JPG = "jpeg";
   public static final String FILE_MP3 = "mp3";
-  public static final String FILE_ARM = "arm";
+  public static final String FILE_AMR = "amr";
   public static final String FILE_MP4 = "mp4";