nodeRemoveChildren() don't collapse node
introduced @fancy-image-dir Less variable
nodeRemoveChildren() doesn't collapse node, but resetLazy() does it
Merge pull request #158 from Koloto/less

introduced @fancy-image-dir Less variable
Merge pull request #157 from Koloto/dev

nodeRemoveChildren() don't collapse node
Prefix for LESS variables

Close #159
Merge branch 'master' of https://github.com/mar10/fancytree