Plug: Make sure that the entry is in the owners
Fix PEP8 nitpick
Add entry in 'uptodate' at the end of transfer
Save the metadata at the end of the transfer
Referee: Add uptodate to the should_own

When files in A are synced with B and a new file is created in A,
the Referee was not adding A in the new owners. Now the files that
are currently up-to-date are added by default.
This could cause a problem if the rule just changed, we should do
some experiments.
split local_storage to isolate pyinotify functions
Simple monitoring works
fix the check of the platform
log instead of print [skip ci]
factorize some code between linux and osx
split linux and darwin
plug.initialize instead of plug.start
use relpath for the tempdirs in tests
OSX: handle subdir
OSX: use tmp file in localstorage