Modifying and adding to Sherry's BT testcases.

Change-Id: I64d301dc6ab56ed2fcef54688647c085bf45dda5

Common/src/com/googlecode/android_scripting/facade/bluetooth/BluetoothFacade.java

diff --git a/Common/src/com/googlecode/android_scripting/facade/bluetooth/BluetoothFacade.java b/Common/src/com/googlecode/android_scripting/facade/bluetooth/BluetoothFacade.java
index 660eec2..2d5b37d 100644
--- a/Common/src/com/googlecode/android_scripting/facade/bluetooth/BluetoothFacade.java
+++ b/Common/src/com/googlecode/android_scripting/facade/bluetooth/BluetoothFacade.java
@@ -158,6 +158,12 @@
         return false;
     }
 
+    @Rpc(description = "Requests that the device be made connectable.")
+    public void bluetoothMakeConnectable() {
+        mBluetoothAdapter
+                .setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE);
+    }
+
     @Rpc(description = "Requests that the device be discoverable for Bluetooth connections.")
     public void bluetoothMakeDiscoverable(
             @RpcParameter(name = "duration",
@@ -271,6 +277,7 @@
     @Rpc(description = "Start the remote device discovery process. ",
          returns = "true on success, false on error")
     public Boolean bluetoothStartDiscovery() {
+        DiscoveredDevices.clear();
         mService.registerReceiver(mDiscoveryReceiver, discoveryFilter);
         return mBluetoothAdapter.startDiscovery();
     }