Merge pull request #51 from fgnt/boeddeker-patch-3

Fix zero time interval in example

example_files/ref.stm

@@ -1,5 +1,6 @@
-recordingA 0 Alice 0 0 Effort made was a lot i know you're busy we need to make the new version clean
+recordingA 0 Alice 1 1 Effort made was a lot i know you're busy we need to make the new version clean
 recordingA 0 Bob 1 2 Strategic staircase we need a paradigm shift
+recordingA 0 Bob 2 3 
 recordingA 0 Alice 2 3 Pipeline Bob called an all-hands this afternoon
 recordingB 0 Alice 3 4 Hop on the bandwagon let's schedule a standup during the sprint to review our kpis
 recordingB 0 Alice 4 5 Hop on the bandwagon let's schedule a standup during the sprint to review our kpis