Enterprise: Add utility method to retrieve corp user handle.

Also show current user handle in verbose log.

Bug 15779911

Change-Id: If9dac500da44b351232ac8af53dc011be043d010
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 771aba1..e335e40 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -20,6 +20,7 @@
     <uses-permission android:name="android.permission.UPDATE_APP_OPS_STATS" />
     <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
     <uses-permission android:name="android.permission.INTERACT_ACROSS_USERS" />
+    <uses-permission android:name="android.permission.MANAGE_USERS" />
     <uses-permission android:name="com.android.voicemail.permission.ADD_VOICEMAIL" />
     <uses-permission android:name="com.android.voicemail.permission.READ_WRITE_ALL_VOICEMAIL" />