* Moved ReturnLayerName() to static BOARD::GetDefaultLayerName() and migrated
    to a Specctra DSN compatible default layer naming scheme:
        Component becomes Front, Copper becomes Back.
  * set_color.h: Cmp becomes Front, Cu becomes Back.
  * D_PAD::DisplayInfo() changed to use actual copper layer names.
  * more layer setup dialog work, moved all programmatic wxControl instantiation
    into the wxFormbuilder environment, but this is fraught with danger:
    wxFlexGridSizer used the tallest control to establish the row heights, so
    be careful about changing control borders in the scroll panel. The vertical
    size can explode since just a couple of pixels times the number of rows
    is substantial.  Currently I am setting a 5 pixel border only left, top, and right
    but not bottom.
  * Set copper layer count is back in place as a hack until I can get the enabled
    layer bit map fully operational.

* Fixed EESchema options dialog focus bug so escape key now works in GTK.
* Rename schematic objects for improved readability.
* Fixed GCC compiler warnings in plot code.
* Added paragraph in UIpolicies.txt about setting dialog box sizes.
* Lots of message box string clean up.

enhancement in Gerbview: page limits can be now displayed on screen. Useful when printing a Gerber layer

others minor bugs fix.

* Replaced library pin properties dialog with wxFormBuilder version.
* Remove DialogBlocks version of pin properties dialog.
* Add pin properties dialog support code to pin object.
* Create single event handler for displaying pin properties dialog.
* Remove left over DialogBlocks project file for annotate dialog.
* Fixed escape key bug in library editor new component dialog.
* Add GetUnitsLabel() to get human readable units for dialog labels.
* Translate French comments in all modified files.
* Some minor clean up of Doxygen comments.

quiet the newer g++ compilers, which complain about certain stdio function's return values not being used

* Replace all known instances of (const wxChar*) casts to GetChars() for
  wxWidgets 2.9 compatibility.
* Cleaned up get component dialog so last part gets saved on wild card
  selections.
* Remove redundant schematic component drawing code.
* Added SCH_COMPONENT constructor to create new component from library
  component object.
* Add message panel helpers to WinEDA_DrawFrame and update old message
  panel access code.
* Using library viewer to add component to schematic now respects unit
  and body style selection.

* Create single event handler for grid size events.
* Fix all frame windows to use new grid size event handler.
* Use offset relative to ID instead of ComboBox index to save last grid size.
* Move last grid size load/save setting into WinEDA_DrawFrame.
* Add equality and assignment operators the GRID_TYPE.
* Add current grid helper methods to BASE_SCREEN.
* Add GetPins helper to LIB_COMPONENT to replace GetNextPin where applicable.
* Add AppendMsgPanel helper to WinEDA_DrawFrame.
* Improve rounding for display of coordinates when millimeter units are selected.

Fixed problems in libedit and crashes when no component loaded

* Eliminate external direct manipulation of component draw item pointer.
* Add draw item remove, add, and locate methods to library component object.
* Remove redundant locate pin, field, and draw item code.
* Fix add new pin drawing bug that left initial pin draw in place.
* Improved best zoom calculations for small components.
* Library component bounding box calculation now includes fields.
* Removed unnecessary header file "libcmp.h".
* Fixed potential locate draw item bug in library editor hot key handler.

* Component library objects renamed for improved readability.
* Fields now move when selected in library editor.
* Add copy constructor to all library draw and library component objects.
* Added copy constructor to EDA_BaseStruct.
* Delete base screen in WinEDA_DrawFrame destructor to prevent potential memory leak.
* Fixed memory access bug when replacing and adding a component to library.
* Moved library component block manipulation code into component object.
* Removed all of the global variables used by the library editor main window object.
* The usual code cleaning and refactoring.

* Split out application specific command IDs to prevent unnecessary rebuilding.
* Eliminate duplicate menu and tool bar command IDs.
* Split component library editor and viewer definitions to separate header files.
* More component library and document file merge code.
* A bunch of minor string readability and consistency fixes.