Fix bad behavior of ColorButton and ColorDialog.

Added profiles import/export, reorganized settings, fixes, fixes and fixes

app/qml/ColorButton.qml

@@ -23,9 +23,7 @@ import QtQuick.Dialogs 1.1
 
 Item {
     id: rootItem
-
-    signal colorSelected (color color)
-    property color color
+    property alias color: colorDialog.color
     property string name
 
     ColorDialog {
@@ -33,10 +31,6 @@ Item {
         title: qsTr("Choose a color")
         modality: Qt.ApplicationModal
         visible: false
-
-        //This is a workaround to a Qt 5.2 bug.
-        onColorChanged: if (Qt.platform.os !== "osx") colorSelected(color)
-        onAccepted: if (Qt.platform.os === "osx") colorSelected(color)
     }
     Rectangle{
         anchors.fill: parent

app/qml/SettingsTerminalTab.qml

@@ -121,18 +121,24 @@ Tab{
                 RowLayout{
                     Layout.fillWidth: true
                     ColorButton{
+                        property color settingsColor: appSettings._fontColor
+                        onSettingsColorChanged: color = settingsColor
+
                         name: qsTr("Font")
                         height: 50
                         Layout.fillWidth: true
-                        onColorSelected: appSettings._fontColor = color;
-                        color: appSettings._fontColor
+                        onColorChanged: appSettings._fontColor = color
+                        Component.onCompleted: { color = settingsColor; }
                     }
                     ColorButton{
+                        property color settingsColor: appSettings._backgroundColor
+                        onSettingsColorChanged: color = settingsColor
+
                         name: qsTr("Background")
                         height: 50
                         Layout.fillWidth: true
-                        onColorSelected: appSettings._backgroundColor = color;
-                        color: appSettings._backgroundColor
+                        onColorChanged: appSettings._backgroundColor = color
+                        Component.onCompleted: { color = settingsColor;}
                     }
                 }
             }