title: Encoding of "ä", "ö", ... doesn't work properly
body: <p>I'm using the CsvProvider on a csv File generated out of an Excel. The csv file contains some specific German characters ('ä', 'ö', ...) that are not read correctly. </p>
  
  <p>I tryied with the Encoding parameter, used a stream with UTF8 Encoding, saved the Excel file as ".csv", ".csv" in MS-DOS Format, ... But, the result was always the same. </p>
  
  <p>Here a reduced code sample:</p>
  
  <pre><code>open FSharp.Data
  
  type MyCsvProvider = CsvProvider&lt;"Mappe1.csv",Separators=";"&gt;
  
  [&lt;EntryPoint&gt;]
  let main argv = 
      let csvDatas = MyCsvProvider.Load("..\..\Mappe1.csv")
  
      for i in csvDatas.Rows do
          printfn "Read: Beispiel='%s' and Änderungsjahr='%d" i.Beispiel i.``�nderungsjahr`` 
  
      0 
  </code></pre>
  
  <p>Here the corresponding CsvFile:</p>
  
  <pre><code>Beispiel;Änderungsjahr
  Data1;2000
  Überlegung;2010
  </code></pre>
  
  <p>And here the result after execution:</p>
  
  <pre><code>Read: Beispiel='Data1' and Änderungsjahr='2000
  Read: Beispiel='?berlegung' and Änderungsjahr='2010
  </code></pre>