Conditional -> GUIObject and make all gui objects children of GUIObject

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>

Change-Id: Ic0a7d6354dabe5919b83942f2f1aa0715625e522
diff --git a/gui/keyboard.cpp b/gui/keyboard.cpp
index 36106c7..f08d714 100644
--- a/gui/keyboard.cpp
+++ b/gui/keyboard.cpp
@@ -43,7 +43,7 @@
 #include "objects.hpp"
 
 GUIKeyboard::GUIKeyboard(xml_node<>* node)
-	: Conditional(node)
+	: GUIObject(node)
 {
 	int layoutindex, rowindex, keyindex, Xindex, Yindex, keyHeight = 0, keyWidth = 0;
 	rowY = colX = -1;