bump 2.5.0

Author: AndreiMisiukevich

PanCardView.nuspec

@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
   <metadata>
     <id>CardsView</id>
-    <version>2.4.9</version>
+    <version>2.5.0</version>
     <title>CardsView</title>
     <authors>Andrei Misiukevich</authors>
     <owners>Andrei Misiukevich</owners>