First pass of using latest WF API (3.0.beta2) but
there are event exception problems within the WF API
so committing a checkpoint.
This has BTLE status and Scan functions implemented,
I also updated About dialog top include the WF version.
A bit of tidy up to make the About dialog look a bit
like it used to in terms of size and layout. Is now
an acceptable size for those on netbooks or devices
with a small screen.
The about dialog was 800x600. This patch reduces margins and
spacing around the widgets to make it somewhat smaller. There is
still room for improvement though.