Project Mode: Show run settings for projects without build settings

Open the "Run" view by default when switching targets in projects
without build settings. The build settings view is not what the user
wants in that case.

Change-Id: I14b5d32fa3fdfef1ba7d4f9f6af383d28021baa8
Reviewed-by: Daniel Teske <daniel.teske@digia.com>