Added a before_save callback for cache_depth as well as the existing before_validation callback. This ensures that all descendants in a subtree have their depth cache updated when the subtree is moved.
Added short alias :root? to existing is_root? method
base_class replace ancestry_base_class
Small text change README
fix deprecation warnings for ActiveRecord 4
Add Gemfile to test against Rails 4.0.0.beta1

All tests pass, but there's a ton of deprecation warnings.
Fix remaining Rails 4 deprecation warnings

All tests are now passing on Rails 3.0 through 4.0.0.beta1 without
deprecation warnings.
Merge branch 'rails4' of git://github.com/adammck/ancestry into adammck-rails4
Resolves #133, allowed parent= for records returning true for blank?/empty?
Add attribute query method for parent id
Based on #97 by sj26
closes #97
Added block to sort_by_ancestry class method.
added test for #85
Merge pull request #76 from divineforest/master

Added short alias :root? to existing is_root? method
Merge pull request #74 from scottatron/master

Added a before_save callback for cache_depth
added ancestry_changed? method that also works with custom ancestry column
Merge branch 'master' of git://github.com/kaize/ancestry into kaize-master

Conflicts:
	lib/ancestry/class_methods.rb
	lib/ancestry/instance_methods.rb
Added test to see if 4e57f32 fixes #87 (which it does)
Added table name to conditions, based on #54 by aflatter
closes #54
update changelog in README, set gemspec to rc1
Set version to 2.0.0, more tnx in README