fixed getbyparent function
fixed error in sons retrieval
fixes #41
updated buils (3.0.1 RC2)
Merge branch 'dynamic-structure' of https://github.com/smartcampuslab/comuneintasca into dynamic-structure

# By raman
# Via raman
* 'dynamic-structure' of https://github.com/smartcampuslab/comuneintasca:
  Fix for image extraction