Make this an official Gerrit plugin

* move to package com.googlesource.gerrit.plugins.avatars.external
* set copyright to "The Android Open Source Project"
diff --git a/src/main/java/org/typo3/gerrit/plugins/avatars/typo3org/ExternalUrlAvatarProvider.java b/src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java
similarity index 96%
rename from src/main/java/org/typo3/gerrit/plugins/avatars/typo3org/ExternalUrlAvatarProvider.java
rename to src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java
index b0bbbc5..f19696c 100644
--- a/src/main/java/org/typo3/gerrit/plugins/avatars/typo3org/ExternalUrlAvatarProvider.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/avatars/external/ExternalUrlAvatarProvider.java
@@ -1,4 +1,4 @@
-// Copyright (C) 2013 Steffen Gebert, for TYPO3 Association
+// Copyright (C) 2013 The Android Open Source Project
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package org.typo3.gerrit.plugins.avatars.typo3org;
+package com.googlesource.gerrit.plugins.avatars.external;
 
 import com.google.gerrit.extensions.annotations.Listen;
 import com.google.gerrit.reviewdb.client.AccountExternalId;