wocommunity/wonder — pull request #608 by amedeomantica (2014-08-30 18:00:39+00:00)
Title: Add support for filesystempath prefix to ERAttachment

Adding a new property er.attachment.file.filesystemPathPrefix to ERAttachment. Useful if you want to change the hosting machine or storage path. Having a prefix would cause to store in the database only the partial path.
Existing attachment should be not affected by the change ( if a stored path is already complete with prefix we are not adding the prefix another time )