Merge pull request #57 from juancjara/development

fixed bugs and tour added
updated with padding between nodes of diferent ancestors
Merge pull request #58 from andreqi/master

updated with padding between nodes of diferent ancestors
Merge pull request #59 from juancjara/development

Development
Merge pull request #60 from juancjara/development

more messages added
Merge pull request #61 from juancjara/master

Development