[hfpop]

I attach a an archive counting as version 0.2 of FolderPruner. Essential changes from 0.1:

- no text report is generated
- all folders *.sdr in the substructure of /mnt/us/documents are considered, i.e. all descendants, not only the children.

Iterations:
v1: initial iteration
v2: it allows folder names that include spaces