Put copyright warning message to the search plugin dialog.

src/gui/search/pluginselectdlg.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>600</width>
-    <height>300</height>
+    <height>345</height>
    </rect>
   </property>
   <property name="acceptDrops">
@@ -72,6 +72,16 @@
      </column>
     </widget>
    </item>
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Warning: Be sure to comply with your country's copyright laws when downloading torrents from any of these search engines.</string>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
    <item>
     <widget class="QLabel" name="getNewPlugin_lbl">
      <property name="font">