Vibration: allow BoardConfig to disable vibration for a device.

Change-Id: Ibd2f67391ce6d7774498839829e0de9391508781
diff --git a/gui/slider.cpp b/gui/slider.cpp
old mode 100644
new mode 100755
index fab5a2e..3c5f652
--- a/gui/slider.cpp
+++ b/gui/slider.cpp
@@ -208,7 +208,11 @@
 			return 0;
 
 		if (sCurTouchX >= mRenderX + mRenderW - sTouchW) {
+
+#ifndef TW_NO_HAPTICS
 			DataManager::Vibrate("tw_button_vibrate");
+#endif
+
 			sAction->doActions();
 		}