Created Unassigned: InvalidOperationException when loading a song [30923]

I've tried to open a song made with 3.0 and I'm getting the following error message:

```
System.InvalidOperationException: Fehler im XML-Dokument (4931,16). ---> System.FormatException: Die Zeichenfolge '1.0' kein gültiger Boolean-Wert. ( = '1.0' is not a is not a valid value for Boolean.)
bei System.Xml.XmlConvert.ToBoolean(String s)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read51_MaximizerDevice(Boolean isNullable, Boolean checkType)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read147_Item(Boolean isNullable, Boolean checkType)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read148_SequencerTrackDeviceChain(Boolean isNullable, Boolean checkType)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read149_SequencerTrack(Boolean isNullable, Boolean checkType)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read156_RenoiseSongTracks(Boolean isNullable, Boolean checkType)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read177_RenoiseSong(Boolean isNullable, Boolean checkType)
bei Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read181_RenoiseSong()
bei Microsoft.Xml.Serialization.GeneratedAssembly.RenoiseSongSerializer.Deserialize(XmlSerializationReader reader)
bei System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
--- Ende der internen Ausnahmestapelüberwachung ---
bei System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
bei System.Xml.Serialization.XmlSerializer.Deserialize(TextReader textReader)
bei NRenoiseTools.RenoiseSong.Load(Stream xrnsInputStream)
bei NRenoiseTools.RenoiseSong.Load(String fileNameArg)
bei <none of your business>.Form1.button1_Click(Object sender, EventArgs e) in d:\Eigene Dokumente\Visual Studio 2013\Projects\<none of your business>\Form1.cs:Zeile 31.

```

Here's the XML that causes it:

```
<MaximizerDevice type="MaximizerDevice">
<IsMaximized>true</IsMaximized>
<IsSelected>true</IsSelected>
<SelectedPresetName>Track Boost Fast</SelectedPresetName>
<SelectedPresetIsModified>true</SelectedPresetIsModified>
<IsActive>
<Value>1.0</Value> // this is line 4931
<Visualization>Device only</Visualization>
</IsActive>
<InputGain>
<Value>1.19999933</Value>
<Visualization>Device only</Visualization>
</InputGain>
<Threshold>
<Value>-6</Value>
<Visualization>Device only</Visualization>
</Threshold>
<TransientRelease>
<Value>10</Value>
<Visualization>Device only</Visualization>
</TransientRelease>
<LongTermRelease>
<Value>200</Value>
<Visualization>Device only</Visualization>
</LongTermRelease>
<Ceiling>
<Value>-0.359999955</Value>
<Visualization>Mixer and Device</Visualization>
</Ceiling>
</MaximizerDevice>
```