Add a rotate filter (fix #15)
Merge pull request #75 from alchemy-fr/rotate

Add a rotate filter (fix #15)
Remove time_start metadata when using synchronize filter
Fix tests
Fix #76 : Remove restriction on filesystem resources
Merge pull request #77 from alchemy-fr/file-restrictions

Fix #76 : Remove restriction on filesystem resources
Update README
Merge branch '0.4'