Allow re-ordering of devices (Resolves #27)

A buttom from Manage Devices launches the OrderDeviceList.vi.  Within a
listbox is present populated with the names of devices.  The contents can
be reordered, and accepting changes results in both the device list and
the table being rebuilt with the new ordering applied.

Removed old code from the sandbox.

Resolves #27.
Merge remote-tracking branch 'origin/master' into improve-layout-portability