PAD-FS v0.3

fix log error

PAD-FS v0.2

bug fix:

• fix evaluation of the next node in the consistent hashing.
• improve the persistent data structure to better retrieve keys.
• remove useless library from the packaged version of the MonitorWebApp, to reduce size.

feature:

• add user conflict resolution.
• add new tests and improve their coverage.

v0.1

fix webapp