ui: Refactored windows to QtWindow base class

* renamed QtSettingsWindow to QtWindow
* moved functionality from QtProjectWizzardWindow to QtWindow
* use common createWindow method in QtMainWindow

bin/app/data/gui/window/listbox.css

@@ -0,0 +1,75 @@
+* {
+	font-size: 12pt;
+}
+
+QtDirectoryListBox {
+	background-color: white;
+	border: 1px solid lightgray;
+	border-radius: 12px;
+}
+
+QListWidget {
+	background: transparent;
+	border: none;
+	margin: 2px 0 2px 0;
+}
+
+QListWidget::item {
+	height: 20px;
+	border-bottom: 1px solid lightgray;
+}
+
+QListWidget::item:selected {
+	background-color: #EEE;
+}
+
+QtListItemWidget #field {
+	background-color: transparent;
+	border: none;
+	margin-top: 2px;
+	margin-left: 5px;
+}
+
+#bar {
+	border-top: 1px solid lightgray;
+}
+
+#plusButton, #minusButton, #dotsButton {
+	color: white;
+	height: 1em;
+	margin-right: 3px;
+	width: 1em;
+	border: none;
+}
+
+#dotsButton {
+	margin-top: 2px;
+}
+
+#plusButton {
+	border-image: url(<setting:gui_path>window/plus.png);
+}
+
+#plusButton:hover {
+	border-image: url(<setting:gui_path>window/plus_hover.png);
+}
+
+#minusButton {
+	border-image: url(<setting:gui_path>window/minus.png);
+}
+
+#minusButton:hover {
+	border-image: url(<setting:gui_path>window/minus_hover.png);
+}
+
+#dotsButton {
+	border-image: url(<setting:gui_path>window/dots.png);
+}
+
+#dotsButton:hover {
+	border-image: url(<setting:gui_path>window/dots_hover.png);
+}
+
+#dropInfo {
+	color: #999;
+}