[eclipse] Init the launch configuration with the selected SRE.

The launch configuration was not set with the selected SRE but with the
user-specific SRE. This commit forces the SRE configuration panel to put
the selected SRE (system, project or user) into the launch
configuration.

see #269

Signed-off-by: Stéphane Galland <galland@arakhne.org>
[eclipse] Add launch options for the SREs.

see #272

Signed-off-by: Stéphane Galland <galland@arakhne.org>