Changes

[version] Bump version to 2.0.8

Change-Id: I985dbb45eb1cedb27e8dacf0542712d56a071bd3
Signed-off-by: Laurent Redor <laurent.redor@obeo.fr>

[510582] Fix pb of ignored file during conversion to modeling project

Some files can be ignored with the extension point
"org.eclipse.sirius.ui.modelingprojectresourcelistener". But these files
are only ignored when they are added to a Modeling Project. The
conversion action (Convert to Modeling Project) does not ignore these
kind of files.
This difference of behavior appears like a bug. On maintenance branch,
some deprecated "API" have been added to temporarily solved the problem.
On Sirius 5.0.0 another approach will be done (probably with API
breaks).

Bug: 510582
Change-Id: I02ed099f654af6c4d03b08bd9e575327af6ed469
Signed-off-by: Laurent Redor <laurent.redor@obeo.fr>