Prepare for 0.3.0-beta release

Rb.Forms.Barcode.nuspec

@@ -3,7 +3,7 @@
   <metadata>
     <id>Rb.Forms.Barcode</id>
     <title>Barcode scanner plugin for Xamarin.Forms</title>
-    <version>0.2.3-beta</version>
+    <version>0.3.0-beta</version>
     <authors>Ota Mares</authors>
     <owners>reBuy reCommerce GmbH</owners>
     <licenseUrl>https://github.com/rebuy-de/rb-forms-barcode/blob/master/LICENSE</licenseUrl>
@@ -14,19 +14,10 @@ Please check the website for further details.
 
 Beta notice: Currently only android is supported.</description>
     <summary>Rb.Forms.Barcode is a Xamarin.Forms view for scanning barcodes.</summary>
-    <releaseNotes>0.2.3-beta
-* Fixed: Property bindings and internal usage of those bindings.
-
-0.2.2-beta
-* Fixed: Restoring view does not restart view.
-
-0.2.1-beta
-* Fixed: Nuget release :(
-
-0.2.0-beta
-* New: Open camera async for faster view initialization.
-* New: BarcodeDecoded, PreviewActivated, PreviewDeactivated, CameraOpened and CameraReleased events.
-* New: Barcode, IsEnabled, PreviewActive, BarcodeDecoder properties.
+    <releaseNotes>0.3.0-beta
+* New: Improved performance by using buffers and FastAndroidCamera.
+* New: Added plenty configuration options!
+* Fixed: Various preview halting and runtime issues.
 </releaseNotes>
     <tags>barcode scanner scanning scan zxing xamarin xamarin.forms rebuy unicorns</tags>
     <dependencies>