[RELEASE] Set the development version to 2.2.1.9000

Author: process-analytics-bot

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: bpmnVisualization
 Type: Package
 Title: Visualize Process Execution Data on BPMN (Business Process Model and Notation) Diagrams
-Version: 2.2.1
+Version: 2.2.1.9000
 Authors@R: c(person("Celine", "Souchet", role = c("aut", "cre"), email = "[email protected]"),
              person("Thomas", "Bouffard", role = "aut"))
 Description: To visualize the execution data of the processes on BPMN diagrams, using overlays, style customization and interactions, with BPMN Visualization.