Update to xunit 2.2 runner

Author: kzu

packages.config

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
 	<package id="GitInfo" version="1.1.29" />
-	<package id="xunit.runner.console" version="2.1.0" />
-	<package id="xunit.runner.msbuild" version="2.1.0" />
+	<package id="xunit.runner.console" version="2.2.0" />
+	<package id="xunit.runner.msbuild" version="2.2.0" />
 	<package id="OpenCover" version="4.6.519" targetFramework="net45" />
 	<package id="ReportGenerator" version="2.4.5" targetFramework="net45" />
 </packages>