Bump version to 2.0.0.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=123410989

demo/src/main/AndroidManifest.xml

@@ -16,8 +16,8 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.google.android.exoplayer.demo"
-    android:versionCode="1503"
-    android:versionName="1.5.4"
+    android:versionCode="2000"
+    android:versionName="2.0.0"
     android:theme="@style/RootTheme">
 
   <uses-permission android:name="android.permission.INTERNET"/>

library/build.gradle

@@ -79,7 +79,7 @@ publish {
     userOrg = 'google'
     groupId = 'com.google.android.exoplayer'
     artifactId = 'exoplayer'
-    version = 'r1.5.4'
+    version = 'r2.0.0'
     description = 'The ExoPlayer library.'
     website = 'https://github.com/google/ExoPlayer'
 }

library/src/main/java/com/google/android/exoplayer/ExoPlayerLibraryInfo.java

@@ -23,16 +23,16 @@ public final class ExoPlayerLibraryInfo {
   /**
    * The version of the library, expressed as a string.
    */
-  public static final String VERSION = "1.5.4";
+  public static final String VERSION = "2.0.0";
 
   /**
    * The version of the library, expressed as an integer.
    * <p>
    * Three digits are used for each component of {@link #VERSION}. For example "1.2.3" has the
-   * corresponding integer version 001002003.
+   * corresponding integer version 1002003 (001-002-003), and "123.45.6" has the corresponding
+   * integer version 123045006 (123-045-006).
    */
-  // TODO[RELEASE]: This needs to not be octal when it gets bumped to 2.x!
-  public static final int VERSION_INT = 001005004;
+  public static final int VERSION_INT = 2000000;
 
   /**
    * Whether the library was compiled with {@link com.google.android.exoplayer.util.Assertions}