update version to 2.2.4 (#138)

build/version.props

@@ -2,7 +2,7 @@
 	<PropertyGroup>
 		<VersionMajor>2</VersionMajor>
 		<VersionMinor>2</VersionMinor>
-		<VersionPatch>3</VersionPatch>
+		<VersionPatch>4</VersionPatch>
 		<VersionQuality></VersionQuality>
 		<VersionPrefix>$(VersionMajor).$(VersionMinor).$(VersionPatch)</VersionPrefix>
 	</PropertyGroup>