MeeGo: Adapt package name to changed OVI store requirements.

MeeGo: Adapt package name to changed OVI store requirements.

Fremantle needed the application version as x_y_z, for Harmattan it must
be x.y.z, otherwise the package will not be accepted by the store.
Obviously.

Task-Number: https://projects.maemo.org/bugzilla/show_bug.cgi?id=276021

Change-Id: I93b8fd7f1c95b9ef26df97f817e3b8b610c4e932
Reviewed-on: http://codereview.qt.nokia.com/2697
Reviewed-by: Alessandro Portale <alessandro.portale@nokia.com>