Plexamp Lite 1.14.1: read-ahead no longer cut off ("Unexpected end of stream")

Two causes, both fixed:
- Plex keeps one file stream per device and cuts the one in progress when another starts, so the read-ahead
  and the player cut each other off. Whole-file fetches (read-ahead, downloads, download-first) now ask for
  the file as a download (?download=1), which Plex leaves out of that rule; the plain address follows for
  servers that refuse downloads.
- Http.abort closed the socket of a response already read to the end, whose connection was back in the pool
  and could be carrying the read-ahead. abort now leaves finished responses alone (test/PoolAbortTest.java).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

AndroidManifest.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- build.sh makes one APK per Android level from this file: it sets minSdkVersion and targetSdkVersion for each,
-     and versionCode = the one below x 100 + the level (15 -> 1508 for Android 2.2, 1516 for 4.1). -->
+     and versionCode = the one below x 100 + the level (16 -> 1608 for Android 2.2, 1616 for 4.1). -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.minamp"
-    android:versionCode="15"
-    android:versionName="1.14"
+    android:versionCode="16"
+    android:versionName="1.14.1"
     android:installLocation="internalOnly">
 
     <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="10" />