WIP for #9: shelves now vertical scrollable
Merge branch 'devel' of github.com:egolus/NoteOrganiser into egolus-devel

* 'devel' of github.com:egolus/NoteOrganiser:
  proposed fix for #3 read files as unicode (utf-8) and replace unreadable characters with '?' sign
removed debug statement
Proposed fix for #3 unicode by egolus

* egolus-devel:
  removed debug statement
  proposed fix for #3 read files as unicode (utf-8) and replace unreadable characters with '?' sign
fix for #11, was not recognising properly long titles
final fix for #2, proper error message for missing title
fix #15, tags are processed as case-insensitive