Fix also other very minor issues.
Realistic mode shows or not the copper thickness (depending on selected option in preferences) to speed up the screen redraw.

Fix for bug #1285878, build fails with clean repository and high parallelism due missing dependance between router and pcbcommon

[MacOSX] Avoid race between cmake -E copy_directory, which triggers a build error when using an high parallelism

* fp_lib_table.cpp: fix an issue on Windows in ConvertFromLegacy: sometimes, because the comparison was case sensitive, lib nicknames  were not found, although  libs exist ( for instance if a path was given like f:\mypath instead of F:\mypath)
* 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.

Viewlib: ensure in wxListBoxes  the lib and the component are always shown as selected when a lib and component are specified (when called by the get component dialog for instance)

Eeschema:  * Preselect the currently chosen component in the browser when pressing the thumbnail view.
* Various smallish documentation updates in the component chooser area.

* 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.

* Fix string concatenation for _( "Unit" ) + wxT( " " ). This failed
  compiling against wxWidgets 2.8 (thanks Cirilo Bernardo ).
* Base the indentation on a measured observation with explanation
  (98%-ile of name-length found in library). The previously chosen 24
  character indentation was too wide for most.
* Don't use a #define spilling into the global namespace, but use
  a locally defined constant for COLUMN_DESCR_POS.

Eeschema: Remove usage of tabs in dialog_choose_component.cpp strings, because it does not work very well on Linux, and does not work on Windows.
This is replaced by the right number of space, using a fixed font (like in CvPcb)
Fix mismatch between icons and the actual rotation of components (CW instead of CCW) (bug 1022154 )

Eeschema: Remove usage of tabs in dialog_choose_component.cpp strings, because they do not work very well on Linux, and do not work on Windows.
Fix incorrect rotation of components (CCW instaed of CW)

* Manually change fbp file minor version number so dialog could be edited
  with latest release version of wxFormBuilder.
* Give component view panel more weight for improved component view size.
* Add padding around dialog button sizer.

* 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

Fix minor bug in eeschema (opening a relative path does not work) (patch from HennerZeller).

* 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.

Fix a minor error in class D_PAD: void D_PAD::Flip( int Y ) changed to virtual void D_PAD::Flip( const wxPoint& aCentre ) (as defined in BOARD_ITEM)
Scripting: fix compatibility current pcbnew version in 2 examples and the default extension of board files  in board.i (was .kicad_brd, now is .kicad_pcb)