** Enhancements**:
- Prints system git version
- [issue 203] Prints execution summary
- [issue 207] Exports execution summary to XLSX file (just for branch flow)
Bugs solved:
- Avoid rebasing or fast-forwarding when pulling from remote branch for merging #195
- printLocalCommand definition-file wrong quotes
- the choosen definition file is not printed in case of all placeholders have default values
- branch flow from event errors fixed