Move back setPlaceholderText to code, from xml, as this broke building with Qt 4.6

src/qt/forms/messagepage.ui

@@ -104,9 +104,6 @@
      <property name="readOnly">
       <bool>true</bool>
      </property>
-     <property name="placeholderText">
-      <string>Click &quot;Sign Message&quot; to get signature</string>
-     </property>
     </widget>
    </item>
    <item>

src/qt/forms/sendcoinsentry.ui

@@ -65,9 +65,6 @@
        <property name="toolTip">
         <string>Enter a label for this address to add it to your address book</string>
        </property>
-       <property name="placeholderText">
-        <string>Enter a label for this address to add it to your address book</string>
-       </property>
       </widget>
      </item>
     </layout>
@@ -98,9 +95,6 @@
        <property name="maxLength">
         <number>34</number>
        </property>
-       <property name="placeholderText">
-        <string>Enter a Bitcoin address (e.g. 1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L)</string>
-       </property>
       </widget>
      </item>
      <item>

src/qt/messagepage.cpp

@@ -24,6 +24,11 @@ MessagePage::MessagePage(QWidget *parent) :
     ui(new Ui::MessagePage)
 {
     ui->setupUi(this);
+    
+#if (QT_VERSION >= 0x040700)
+    /* Do not move this to the XML file, Qt before 4.7 will choke on it */
+    ui->signature->setPlaceholderText(tr("Click \"Sign Message\" to get signature"));
+#endif
 
     GUIUtil::setupAddressWidget(ui->signFrom, this);
 }

src/qt/sendcoinsentry.cpp

@@ -20,7 +20,11 @@ SendCoinsEntry::SendCoinsEntry(QWidget *parent) :
 #ifdef Q_WS_MAC
     ui->payToLayout->setSpacing(4);
 #endif
-
+#if QT_VERSION >= 0x040700
+    /* Do not move this to the XML file, Qt before 4.7 will choke on it */
+    ui->addAsLabel->setPlaceholderText(tr("Enter a label for this address to add it to your address book"));
+    ui->payTo->setPlaceholderText(tr("Enter a Bitcoin address (e.g. 1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L)"));
+#endif
     setFocusPolicy(Qt::TabFocus);
     setFocusProxy(ui->payTo);