Update README.md to clarify hierarchy manipulation
Merge branch 'master' of https://github.com/ruok5/closure_tree into five_two_oh
fixes #135
Prevent name collision with other gems: allowing the use of `has_closure_tree` beside method besides `acts_as_tree`
Merge pull request #130 from eturino/has_closure_tree

Prevent name collision with other gems: allowing the use of `has_closure_tree`method besides `acts_as_tree`
Merge pull request #135 from ruok5/master

Update README.md to clarify hierarchy manipulation
Merge pull request #129 from rselk/multiple_models

fix index name clash for multiple models.
wip
Merge remote-tracking branch 'origin/master' into five_two_oh

Conflicts:
	README.md
	lib/closure_tree/has_closure_tree.rb