Merge pull request #243 from markbernard/update_tests

Update test-core.js - thanks!
Generate form elements with same name attribute

<input type="checkbox" name="ft_1" value="node1" checked="checked">
<input type="checkbox" name="ft_1" value="node3" checked="checked">

This causes that when the form post to the server, there is one variable in $_POST global variable.

If we change it's name attribute to "ft_1[]", all variables are in array in $_POST
Merge pull request #245 from burakcakirel/master

Generate form elements with same name attribute (fix for PHP)
generateInput() appends data element after tree (instead of inside <ul>)
Merge branch 'master' of https://github.com/mar10/fancytree
Fixed multiple generateInput() data elements
Children lazy empty nodes remain checked when parent is unchecked with hierarchical multi-selection

Close #250
Added node.info()
Added tree.getRootNode()
Update README.md
Update README.md
Fixed doc links
[ext-clones]: clear key maps on reload
Use grunt-yabs for release
Merge branch 'master' of https://github.com/mar10/fancytree
Fix navigation in filtered trees

close #272
New option dnd.focusOnClick
Update grunt-yabs
Bumping version to 2.2.0
Bump prerelease (2.2.1-0) [ci skip]