App needs to remember the selected organization from last session

[jbair06]

When the app is launched, the organization always defaults to personal. It should remember the selection from the last session. This may require that the app has a longer loading splash screen, as the app will need to connect to the desired organization, but the impact should be as minimized as possible.

[jbair06]

In some situations it might be better to have a default selection instead of using the same selection as the last session. This is a possible setting that can be added, if desired.