Initial attempt to process the UPTask queue
Add test for the userprofiletask
Start with the FileRecursionUtil (process creation for parallel download
is done)
Start with the file synchronization (much nicer this time)

some test still fail
Minor log improvements
Add convenience method to get the file key directly
Refactored the File2MetaFile component
Initial attempt for file movement

could perform better, but steps are optimally re-used
Add the MoveFile test
(and improve other test util)
Merge branch 'process-refactoring-nico' into process-refactoring