Fragmentize BluetoothSettings.
Add UserLeaveHintListener.java, so that the settings won't use
its implementation around Activity#onUserLeaveHint().
Also fragmentize bluetooth tethering screen.
Change-Id: Id06ae3161fbdb5854ddb7a257f464fb16ea9b089
diff --git a/proguard.flags b/proguard.flags
index 9427b09..0e1b428 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -3,4 +3,4 @@
-keep class com.android.settings.*Picker
-keep class com.android.settings.*Settings
-keep class com.android.settings.wifi.*Settings
--keep class com.android.settings.deviceinfo.*
\ No newline at end of file
+-keep class com.android.settings.deviceinfo.*