Change sign message bitcoin address tooltip to "The address to sign the message with" Closes bitcoin#1050

Author: graingert

Diff for: src/qt/forms/messagepage.ui

@@ -35,7 +35,7 @@
      <item>
       <widget class="QValidatedLineEdit" name="signFrom">
        <property name="toolTip">
-        <string>The address to send the payment to  (e.g. 1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L)</string>
+        <string>The address to sign the message with  (e.g. 1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L)</string>
        </property>
        <property name="maxLength">
         <number>34</number>