Bump version for highcharts merge and CRAN release

Change-Id: I69261fc73d47875d2c733310c4011c8ad209eb67
diff --git a/DESCRIPTION b/DESCRIPTION
index 8277615..aaea6c2 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: RKorAPClient
 Type: Package
 Title: KorAP Web Service Client Package
-Version: 0.4.1
+Version: 0.5.0
 Author: KorAP-Team @ IDS Mannheim
 Maintainer: KorAP-Team <korap@ids-mannheim.de>
 Description: A simple package that makes KorAP's web service API accessible from R.