files cleaning

fixed a grid refresh problem when using fast algo in drawpanel.cpp

Added patch for macOSX
turn on fast algo for draw grid (should work now)

Ugly but necessary fix to display toolbars in latest Linux version (tested with Ubuntu 9.10 updated)

* Fix debug asserts when passing NULL pointers to wxAuiPaneInfo.
* Fix Kicad main window sash sizer bug when using wxAui.
* Remove specctra_test from Visual Studio builds to prevent build errors.
* Add WIN32 to layer widget test so it will build properly on Visual Studio.
* Fixed compiler conversion warnings in PCBNew.
* Fixed worksheet print scaling in PCBNew.
* Minor code renaming.

Code cleaning and using DrawPanel->Refresh() instead of ReDraw() when possible.

Tried to fix a problem under Vista and Window 7 in fill zone: sometimes Pcbnew crashes.
Could be a bug in Kbool (see changelog).

Fixed others minor problems 

Eeschema: fixed a bug that crashes Eeschema when the library editor or/and the lib viewer is opened and if the schematic (or an other) is reloaded (that involves libraries are deleted and reloaded)

    constructor takes a keyword table, so it can be used for arbitrary DSN
    syntax files of your own chosing.  Simply create an enum {} with all your
    unique tokens in it.  Then create a KEYWORD table.  See SPECCTRA_DB::keywords[].
    The reason you want an enum is to give the C++ debugger better type information
    so it can show symbolic integer symbols.
  * Factored out common richio.cpp and richio.h
    which is what DSNLEXER uses.
  * Fixed some minor issues with reading circuit descriptor from a *.dsn file.

  * 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.

* Replace schematic editor options dialog with wxFormBuilder version.
* Fix ugly wxGTK sizer hack in pin properties dialog.
* Set dialog minimum size after initial fit to prevent dialog controls
  from being obscured when resizing.
* Move bitmaps in annotate dialog for cleaner control alignment.

* Make cancel button delete new pin instance.
* Make pin redraw correctly to prevent display corruption.
* Prevent edited pin from being move on next left button click.
* Change pin edit property dialog focus to pin name edit text control.

* Complete comment translation for all EESchema source files.
* Complete comment translation for all 3D viewer source files.
* Rename class class_hierarchical_PIN_sheet to SCH_SHEET_PIN.
* Rename class DrawSheetStruct to SCH_SHEET.
* Tool tip capitalization fixes.
* Uncrustify and spell check comments and strings in all modified source
  files.