Fix startup script for OpenMPI

Change-Id: I479b6b7a1b19688810db5dfd09cb1753470be003
Use the correct webpage from the configuration in the Webbrowser widget.

Cleanup Configuration classes.

Change-Id: I602dc1b53decfcefa40fe0523b829062854be736
Merge pull request #124 from rdumusc/webpage_config

Use the correct webpage from the configuration in the Webbrowser widget....