Added calculate_md5_of_dir function
Calculate md5 dir modified
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team2

Conflicts:
	client/client_daemon.py
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team2
Added read_file function and snapshot structure representation
Added hash_file method to the daemon
Modified calculate_md5_of_dir
modified on_deleted method to handle new client_snapshot structure
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team2

Conflicts:
	client/client_daemon.py
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team2