Make file formatting comply with POSIX and Unix standards

UTF-8, LF, no BOM, and newlines at the end of files

platform/android/java/lib/src/com/google/android/vending/expansion/downloader/Constants.java

@@ -233,4 +233,4 @@ public class Constants {
      */
     public static final long ACTIVE_THREAD_WATCHDOG = 5*1000;
 
-}
+}