* Create new dialog to edit environment variables.
* Add helper class ENV_VAR_ITEM to manage environment variable values and
if they were defined externally.
* A path configuration dialog access to KiCad, CvPcb, Pcbnew, and Footprint Editor
window menus.
* Add validator for environment variables.
include/vector2d.h: Removed old version
include/math/math_util.h: rescale() for VECTOR2
include/math/vector2d.h: New version of VECTOR2
include/math/box2.h: New version of BOX2
common/drawframe.cpp: Refactorization of code, so it is compatible with new classes
include/plot_common.h, pcbnew/basepcbframe.cpp: Changed header inclusion path
CMakeLists.txt: Added definition to turn on WX_COMPATIBILITY for replacement classes
jean-pierre charras
Simon Richter
Wayne Stambaugh
Maciej Suminski
tomasz.wlostowski@cern.ch