Release 0.9.6

This release is identical to R0.9.5, except for the fix to the Gem release date.

Release 0.9.5

This is a feature and bug-fix release.

1. Added new methods for getting the path of a node as a string. These have been added as a new mix-in as Tree::Utils::TreePathHandler. Thanks to @MZic.
2. Fixed issue #32 and enabled move semantics on the Tree::TreeNode#add method, so that a child being
   added, that has an existing parent, will be removed from its old parent, prior to being added to the new location.
3. Added performance improvements to Tree::TreeNode#is_root? and Tree::Utils::TreeMetricsHandler#node_depth. Thanks to @aidansteele.
4. Added Tree::TreeNode#rename and Tree::TreeNode#rename_child methods by merging in code from pull request #35. Thanks to @packetmonkey.
5. Fixed issue #13 with the patch provided by @jhamon.
6. Fixed a bug in Tree::TreeNode#print_tree with the patch provided by @packetmonkey.
7. Fixed issue #31, which was causing incorrect behavior in Tree::TreeNode#postordered_each and
   Tree::TreeNode#breadth_each methods when a block was not provided.

Release 0.9.2

This is a feature and bug-fix release.

The Features

• Rubytree now supports postordered traversal via the Tree::TreeNode#postordered_each` method. Thanks to Paul de Courcel for this.
• The Binary tree now supports inorder traversal via the Tree::BinaryTreeNode#inordered_each method.
• Ability to merge in another tree at a chosen node, or merge two trees to create a third tree. Thanks to Darren Oakley for this (pull #2)
• RubyTree now mixes in the Comparable module.

The Fixes

• (Partial) fix for preventing cyclic graphs in the tree
• Refactored the Tree::TreeNode#each method to prevent stack errors while navigating deep trees (issue #12)
• Check to ensure that the added node's name is unique to the destination tree (pull #9). Thanks to Youssef Rebahi-Gilbert for the idea and the initial code
• Fix for (issue #23), where the tree traversal on a binary tree would fail if the left child was nil.
• The traversal methods Tree::TreeNode#each, Tree::TreeNode#preordered_each, Tree::TreeNode#postordered_each and Tree::TreeNode#breadth_each now correctly return an Enumerator as the return value when no block is given, and return the receiver node if a block was provided. This is consistent with how the standard Ruby collections work.

Other Changes

• Structural changes in the code to refactor out the non-core functions into modules (mostly by extracting out non-core code as mixins).
• Significant refactoring of the documentation. The Yardoc tags are now extensively used.
• Basic support built-in for including example code in the Gem. This will be fully expanded in the next release.
• Various changes to the bundler, travis-ci and other Rakefile related changes.