refs #911, paste support in forms

* added paste icon
* base class utility functions
* implemented paste for livery, airline and aircraft ICAO

src/blackgui/editors/airlineicaoform.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>233</width>
-    <height>205</height>
+    <width>243</width>
+    <height>206</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -107,6 +107,17 @@
            </property>
           </widget>
          </item>
+         <item>
+          <widget class="QToolButton" name="tb_Paste">
+           <property name="text">
+            <string>...</string>
+           </property>
+           <property name="icon">
+            <iconset resource="../../blackmisc/blackmisc.qrc">
+             <normaloff>:/diagona/icons/diagona/icons/clipboard-paste.png</normaloff>:/diagona/icons/diagona/icons/clipboard-paste.png</iconset>
+           </property>
+          </widget>
+         </item>
          <item>
           <widget class="QLabel" name="lbl_AirlineIcon">
            <property name="text">
@@ -205,7 +216,7 @@
       <item row="5" column="0">
        <widget class="QLabel" name="lbl_Timestamp">
         <property name="text">
-         <string>Last updated</string>
+         <string>Last updated:</string>
         </property>
         <property name="buddy">
          <cstring>le_Updated</cstring>
@@ -310,6 +321,8 @@
   <tabstop>country_Selector</tabstop>
   <tabstop>le_Updated</tabstop>
  </tabstops>
- <resources/>
+ <resources>
+  <include location="../../blackmisc/blackmisc.qrc"/>
+ </resources>
  <connections/>
 </ui>