bump version number

Author: Cory Thompson

build/package/WebPush.nuspec

@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>WebPush</id>
-    <version>1.0.7</version>
+    <version>1.0.8</version>
     <authors>Cory Thompson</authors>
     <owners>Cory Thompson</owners>
     <licenseUrl>https://github.com/coryjthompson/web-push-csharp/blob/master/LICENSE</licenseUrl>