Bump version + update release notes

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=158153988

RELEASENOTES.md

 # Release notes #
 
+### r2.4.2 ###
+
+* Stability: Work around Nexus 10 reboot when playing certain content
+  ([2806](https://github.com/google/ExoPlayer/issues/2806)).
+* MP3: Correctly treat MP3s with INFO headers as constant bitrate
+  ([2895](https://github.com/google/ExoPlayer/issues/2895)).
+* HLS: Use average rather than peak bandwidth when available
+  ([#2863](https://github.com/google/ExoPlayer/issues/2863)).
+* SmoothStreaming: Fix timeline for live streams
+  ([#2760](https://github.com/google/ExoPlayer/issues/2760)).
+* UI: Fix DefaultTimeBar invalidation
+  ([#2871](https://github.com/google/ExoPlayer/issues/2871)).
+* Misc bugfixes.
+
 ### r2.4.1 ###
 
 * Stability: Avoid OutOfMemoryError in extractors when parsing malformed media

build.gradle

@@ -48,7 +48,7 @@ allprojects {
         releaseRepoName = getBintrayRepo()
         releaseUserOrg = 'google'
         releaseGroupId = 'com.google.android.exoplayer'
-        releaseVersion = 'r2.4.1'
+        releaseVersion = 'r2.4.2'
         releaseWebsite = 'https://github.com/google/ExoPlayer'
     }
     if (it.hasProperty('externalBuildDir')) {

demo/src/main/AndroidManifest.xml

@@ -16,8 +16,8 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.google.android.exoplayer2.demo"
-    android:versionCode="2401"
-    android:versionName="2.4.1">
+    android:versionCode="2402"
+    android:versionName="2.4.2">
 
   <uses-permission android:name="android.permission.INTERNET"/>
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

library/core/src/main/java/com/google/android/exoplayer2/ExoPlayerLibraryInfo.java

@@ -24,13 +24,13 @@ public interface ExoPlayerLibraryInfo {
    * The version of the library expressed as a string, for example "1.2.3".
    */
   // Intentionally hardcoded. Do not derive from other constants (e.g. VERSION_INT) or vice versa.
-  String VERSION = "2.4.1";
+  String VERSION = "2.4.2";
 
   /**
    * The version of the library expressed as {@code "ExoPlayerLib/" + VERSION}.
    */
   // Intentionally hardcoded. Do not derive from other constants (e.g. VERSION) or vice versa.
-  String VERSION_SLASHY = "ExoPlayerLib/2.4.1";
+  String VERSION_SLASHY = "ExoPlayerLib/2.4.2";
 
   /**
    * The version of the library expressed as an integer, for example 1002003.
@@ -40,7 +40,7 @@ public interface ExoPlayerLibraryInfo {
    * integer version 123045006 (123-045-006).
    */
   // Intentionally hardcoded. Do not derive from other constants (e.g. VERSION) or vice versa.
-  int VERSION_INT = 2004001;
+  int VERSION_INT = 2004002;
 
   /**
    * Whether the library was compiled with {@link com.google.android.exoplayer2.util.Assertions}