Add ScatterPlot to the default ride layout

.. its ready for prime time

.. but needs the metric/imperial bugs fixed !
Appearances config to hide ride scrollbar

.. on Non-Mac platforms. It might be just me but the scrollbar
   just looks horrible.

.. should look at a custom scrollbar that 'appears' when it
   is needed (when scrolling or on hover?)
Style the ridelist scrollbar on non-mac

.. to be less obtrusive.

.. lets see if we can improve on this ?
Less Intrusive Sidebar Scrollers

.. but still want an 'on hover' scrollbar
   for the ride list.
Oh. Only Linux for Scrollbars

.. Windows looks HORRIBLE.
Allow Heading to be hidden in ride list

.. cleaning up the ride list.
Fix HrPw marker colors
Fix x axis on CP plot compare

.. when changing ride series from e.g Power to W/KG
More messing with ride list scrollbar

.. on Linux only too !
RideNavigator::configChanged()

.. instead of doing it every time we refresh
Prettify Scrollbars for Windows

.. as well as for Linux as done earlier today.
Merge remote-tracking branch 'upstream/master'