* getpart.cpp: fix a potential bug on a translatable string with has requirements in spelling.
* fix bug #1066179
* kicad: fix erroneous labels in sub menus.
* Pressing 'Enter' while the focus is in the tree did not work due to the
double-click wxWidgets workaround. Make it work.
* More clearly document what is happening and how it can be tested.
* Improve component chooser redraw to fit in wxWidgets redraw strategies.
* Use LIB_COMPONENT::Draw and LIB_COMPONENT::GetBoundingBox for drawing the
component
* Make resize redrawing work properly.
* Allow to select units in components that have more than one right in the
component chooser dialog.
* Keep chosen unit in history.
* Show preview of current component unit as thumbnail image next to the
description box.
* Fixes lp:1280567
* make some more fields 'const' that can.
* Instead of previous/next _visible_ element, Go through
previous and next element. Otherwise the cursor stops moving
if the item is only partially visible.