Prepare new development version 0.6.1.9000

Change-Id: I8300e39257fedc4a23af7c1fb93ef4ccbaa795ad
diff --git a/KorAPClient/__init__.py b/KorAPClient/__init__.py
index 1b31222..c6e6699 100644
--- a/KorAPClient/__init__.py
+++ b/KorAPClient/__init__.py
@@ -8,7 +8,7 @@
 from packaging import version
 import warnings
 
-CURRENT_R_PACKAGE_VERSION = "0.6.1"
+CURRENT_R_PACKAGE_VERSION = "0.6.1.9000"
 
 KorAPClient = packages.importr('RKorAPClient')
 if version.parse(KorAPClient.__version__) < version.parse(CURRENT_R_PACKAGE_VERSION):