Support for encrypting /data on Stingray.

There are still a few hacks and performance issues related
to shutting down the framework in this code, but it is
functional and tested.  Without the UI changes, it requires
cryptic adb shell commands to enable, which I shall not
utter here.

Change-Id: I0b8f90afd707e17fbdb0373d156236946633cf8b
diff --git a/CommandListener.h b/CommandListener.h
index 75c7e81..7bae363 100644
--- a/CommandListener.h
+++ b/CommandListener.h
@@ -76,6 +76,13 @@
         virtual ~XwarpCmd() {}
         int runCommand(SocketClient *c, int argc, char ** argv);
     };
+
+    class CryptfsCmd : public VoldCommand {
+    public:
+        CryptfsCmd();
+        virtual ~CryptfsCmd() {}
+        int runCommand(SocketClient *c, int argc, char ** argv);
+    };
 };
 
 #endif