Add author info and update struct
Use relative namespaces
Use null over false and fix phpdocs, add structure for Tree
Add renderers for tree
Add basic Tree implementation and Markdown renderer
Add vendor to gitignore
Add Tree example and fix common to use correct autoloader
Use relative namespaces and fix phpdocs
Implement ASCII tree renderer
Add example for ASCII
Fix Markdown renderer
Fix most of the namespaces and phpdocs