ADD: static access, InputStream or String filename as parameter for file
ADD: PUBLIC and PUBLIC_ROOT constants
FIX: PUBLIC constant in Filecrawler, static access to SmartTagParser ADD: implement Runnable
ADD: start thread in VirtualFS for listening to changes in files/folders
ADD: PUBLIC_ROOT constant if user asks for file root
FIX: bug - use Date and not Calendar
FIX: NPEs
FIX: NPEs