Making Magritte compatible with Pharo 2.0

Hi all, I was testing today how the image look with the new configuration, but it did not work well. There are a few issues that Pier3 is not yet compatible with Pharo 2.0. The issue I have been working on is the issue of the MAExternalFileModel. It still uses FileDirectory, and that is no longer in Pharo 2.0. So here are the options: 1. I change the implementation to FileSystem, the new implementation in Pharo2.0. This is also available for Pharo1.4, but not loaded by default. Drawback of course is that I do not know if this is part of other platforms. 2. I change this to make use of Grease. Problem here is that in Grease I do not have all functionality, so that means it should be implemented for all platforms. The main method that I miss is: exitsFileOrDirectory: aString (maybe with a parameter to indicate wether it needs of a certain type (Directory / File). I gave a go at the second solution, and now that I am typing this mail, I realize that this is part of Magritte-Pharo-Model, so that the first solution is probably a better idea. Are there any objections implementing the first solution? Cheers, Diego