Bump to dev version 1.2.1.9000

Change-Id: I0ae5285f110d02b3039031eb42f7458d432b39e2
diff --git a/DESCRIPTION b/DESCRIPTION
index 2c2e250..b0d7359 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: RKorAPClient
 Type: Package
 Title: 'KorAP' Web Service Client Package
-Version: 1.2.1
+Version: 1.2.1.9000
 Authors@R:
     c(person(given = "Marc",
              family = "Kupietz",