CESNET/perun — pull request #156 by zlamalp (2014-02-14 10:06:46+00:00)
Title: GUI: use assign/remove method handling lists

- JsonUtils, added toList() method, which will return
ArrayList of required type from single object.
- Added call to assign and remove groups on resources.
- Use new methods on tabs, removed old methods handling
single group-resource combination.