[dev] [dexonline/dexonline] 647564: Allow deletion of empty trees. Fixes #518.

[GitHub via Dev]

  Branch: refs/heads/master
  Home:   https://github.com/dexonline/dexonline
  Commit: 647564000d84f374515294b0f47a12791be8823c
      https://github.com/dexonline/dexonline/commit/647564000d84f374515294b0f47a12791be8823c
  Author: Cătălin Frâncu <cata at francu.com>
  Date:   2016-10-05 (Wed, 05 Oct 2016)

  Changed paths:
    M phplib/models/Tree.php
    M templates/editTree.tpl
    M wwwbase/editTree.php

  Log Message:
  -----------
  Allow deletion of empty trees. Fixes #518.