Merge pull request android-async-http#414 from realxu/master

Wrong length calculated when uploading files, Closing android-async-http#332

Author: smarek

library/src/main/java/com/loopj/android/http/SimpleMultipartEntity.java

@@ -190,7 +190,7 @@ private byte[] createHeader(String key, String filename, String type) {
         }
 
         public long getTotalLength() {
-            long streamLength = file.length();
+            long streamLength = file.length() + CR_LF.length;
             return header.length + streamLength;
         }