Add User-Agent for official client

Author: Javen

src/cn/jpush/api/common/IHttpClient.java

@@ -9,6 +9,7 @@ public interface IHttpClient {
     public static final String RATE_LIMIT_QUOTA = "X-Rate-Limit-Limit";
     public static final String RATE_LIMIT_Remaining = "X-Rate-Limit-Remaining";
     public static final String RATE_LIMIT_Reset = "X-Rate-Limit-Reset";
+    public static final String JPUSH_USER_AGENT = "JPush-API-Java-Client";
 
     public static final int RESPONSE_OK = 200;
     public static final String METHOD_POST = "POST";

src/cn/jpush/api/common/NativeHttpClient.java

@@ -54,6 +54,7 @@ public ResponseWrapper sendRequest(String url, String content, String method, St
 			conn.setReadTimeout(DEFAULT_SOCKET_TIMEOUT);
 			conn.setUseCaches(false);
 			conn.setRequestMethod(method);
+			conn.setRequestProperty("User-Agent", JPUSH_USER_AGENT);
 			conn.setRequestProperty("Connection", "Keep-Alive");
 			conn.setRequestProperty("Accept-Charset", CHARSET);
 			conn.setRequestProperty("Charset", CHARSET);