initial Best Network Selection implementation

-add dhcpserver, defaultGwMAC address, linked configuration and user choices link lists to WiFiconfiguration
-add default gateway mac address to RouteInfo
-add a Date to the ScanResult
-add BSSID date to the WifiConfiguration
- make framework auto-join into a config option
- add Settings option for showing RSSI in Wifi picker view; add auto-join specific status to WifiConfiguration

Change-Id: I5cfc4f2a48c9f3bc9766e8e68e24eff7b57f2821

 Changes to be committed:
	modified:   core/java/android/provider/Settings.java
	modified:   wifi/java/android/net/wifi/ScanResult.java
	modified:   wifi/java/android/net/wifi/WifiConfiguration.java
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 722b797..9305bc4 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -605,6 +605,14 @@
 
             if (!disableNetwork) {
                 try {
+                    Slog.i(TAG, "Network Score Service");
+                    networkScore = new NetworkScoreService(context);
+                    ServiceManager.addService(Context.NETWORK_SCORE_SERVICE, networkScore);
+                } catch (Throwable e) {
+                    reportWtf("starting Network Score Service", e);
+                }
+
+                try {
                     Slog.i(TAG, "NetworkStats Service");
                     networkStats = new NetworkStatsService(context, networkManagement, alarm);
                     ServiceManager.addService(Context.NETWORK_STATS_SERVICE, networkStats);
@@ -653,14 +661,6 @@
                 }
 
                 try {
-                    Slog.i(TAG, "Network Score Service");
-                    networkScore = new NetworkScoreService(context);
-                    ServiceManager.addService(Context.NETWORK_SCORE_SERVICE, networkScore);
-                } catch (Throwable e) {
-                    reportWtf("starting Network Score Service", e);
-                }
-
-                try {
                     Slog.i(TAG, "Network Service Discovery Service");
                     serviceDiscovery = NsdService.create(context);
                     ServiceManager.addService(