* Fix offset errors when scale factor greater is than one.
* Changed behavior of fit in page when not drawing border and
title block to fit board outline in page.
* Fix offset errors when mirroring (still not 100% correct on MSW with
wxWidgets 2.9.4).
* Lots of the usual code cleaning and simplifying.
* Move schematic wire and bus break code into schematic screen object.
* Move schematic test for dangling ends into schematic screen object.
* Remove left over debugging output in schematic screen object.
* Remove unused file eeschema/cleanup.cpp.
* Fix bug in schematic line object hit test algorithm.
* Fix a string concatenation compile error added in r2752.
* Rename class WinEDA_BasicFrame to EDA_BASE_FRAME.
* Rename class WinEDA_DrawFrame to EDA_DRAW_FRAME.
* Rename class WinEDA_DrawPanel to EDA_DRAW_PANEL.