another beta image release

[Onno]

Hi Andreas, 
It seems like the Pypilot Plug-in in OpenCPN has about the same problems on the raspberry like on the windows version.
In both versions you can not swap the tack direction, only in windows without wind data you can swap the direction after the first default tack.
On the pi you can not at all.
With winddata you should could do the tack in both versions but it is the wrong direction.

At least you should now be able to use the webinterface.