Changes to jquery.dynatree definitions

- Updated definition to version 1.2.5 of jquery.dynatree
- Solved conflict that happens when using jquery.dynatree definitions and
  jqueryui definitions together

please change to `toDict(includeRoot?: boolean): any;`
https://code.google.com/p/dynatree/source/browse/trunk/src/jquery.dynatree.js#2372