add config page

package/contents/config/config.qml

@@ -0,0 +1,10 @@
+import QtQuick 2.0
+import org.kde.plasma.configuration 2.0
+
+ConfigModel {
+  ConfigCategory {
+    name: i18n("General")
+    icon: "configure"
+    source: "configGeneral.qml"
+  }
+}

package/contents/config/main.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
+      http://www.kde.org/standards/kcfg/1.0/kcfg.xsd">
+  <kcfgfile name=""/>
+  
+  <group name="General">
+    <entry name="pollingrate" type="Int">
+      <default>10</default>
+      <min>2</min>
+      <max>60</max>
+    </entry>
+  </group>
+</kcfg>