Make manage apps UI multi-user aware.

The details screens still need some work.

Change-Id: I850cc9ba9a8db7787fae629ae3cb6c6772c726f5

src/com/android/settings/Settings.java

@@ -102,6 +102,7 @@ public class Settings extends PreferenceActivity
             R.id.device_section,
             R.id.sound_settings,
             R.id.display_settings,
+            R.id.application_settings,
             R.id.personal_section,
             R.id.security_settings,
             R.id.account_settings,