Add command change directory with specs
Add path classes with specs
Use no-color option for rspec to have no troubles in vim
Rename Node::from_path to create_from_path and add options in to include the generated nodes to specified tree
Add Dir#[] to get specific child
Refactor Node::create_from_path
Add Node::from_path to search in tree
Extract from_path to NodeFinderlib/ry_safe/safe/dir.rbsearch
Extract refactored NodeFinder class to separate file
Rename error DestinationNotNode to DestinationNotDir
Refactor node_spec
Add exception throwing if no tree is set in node_finder
Add Path#to_existing_node_in with specs
Add Tree#reset_current and fix specs
Fix RelativePath#cleanpath
Fix ChangeDirectory command to use only existing nodes in tree
Add move command
Add command copy
Add remove command
Refactor commands