Fix minor other issues.
Remove unused files.

* Add hotkey fast switch to two grids: for place and trace
	Alt+"1" - switch grid for place module
	Alt+"2" - switch grid for trace
  This two grid set in dialog - menu Preferences->Dimensions->Grid.
* Add hotkey switch grid:
	"`" - switch to next grid
	Ctrl+"`" - switch to previous grid
* Add hotkey switch track width:
	"W" - switch to next track width
	Ctrl+"W" - switch to previous track width
cmakemodules:
* Add GOST to KICAD_BUILD_VERSION if define KICAD_GOST.

* Changed <wx-2.8/xml/xml.h> to "xnode.h" in pcbnew_config.cpp to fix bug
  when building against wxWidgets 2.9 and above.
* Convert broken wxXmlNode code to use XNODE.
* Overloaded XNODE constructor for creating child nodes.
* Translate French naming conventions.
* Translate French comments.
* Remove tabs from several source files.
* Coding style policy and Doxygen comment fixes.

* Add hotkey "P" - place item
* Add record and play macros for sequence hotkey.
Macros set to numeric key 0..9.
<Ctrl>+<numkey> - start record macros
<hotkey> <mouse move> ... <hotkey>|<mouse place>
<Ctrl>+<numkey> - end record macros
<numkey> - play macros
* Add menu save/read macros to/from xml-file
* Add configure rotate angle for rotate module: 45 or 90 deg.
* fix segfault when move/drag segment if disconnected to pad

* Rename all ADD_MENUITEM_* functions to AddMenuItem and move them to
  wxstruct.h since they are used by the Kicad main frame classes.
* Move SET_BITMAP and SETBITMAPS definitions to wxstruct.h.
* Fix a bug in SET_BITMAPS that prevented enabling menu item images on
  OSX.
* Rename MsgItem to EDA_MSG_ITEM.
* Remove redundant includes from modified files.
* Doxygen and coding style policy fixes.

* Check user write permissions before saving project, board, and footprint
  library files.
* Append read only to file name and path in title bar when the user
  does not have write privileges.
* Rename class WinEDA_ModuleEditFrame to FOOTPRINT_EDIT_FRAME.
* Lot's of Doxygen comment and coding style policy fixes.

Pcbnew: finish work on Length Die (displays track length, and fulll  length and length die for tracks ending on pads having a length die > 0 )

Minor fixes and enhancements.

zone to zone DRC 'clearance' policy/setting now comes from ZONE_CONTAINER::GetClearance(), a virtual override, and is currently ignoring the netclass setting and using only the m_ZoneClearance settting, see ZONE_CONTAINER::GetClearance() to adjust policy.

pcbnew's footprint editor was not injecting the m_LocalClearance setting back into an existing board after a module edit

Store the name of modedit active(/current/working?) library in a static variable. Edit some modedit strings.

* Raise 3D frame in PCB editor and module editor instead of displaying a message
  dialog indicating that the 3D viewer is already open.
* Raise 3D viewer and module viewer in CVPCB to mimic the behavior changed in
  PCBNew.
* Set focus to OpenGL canvas when creating 3D viewer so mouse wheel events
  are handled on Windows without having to click on the canvas.
* Rename 3D viewer frame class from WinEDA3D_DrawFrame to EDA_3D_FRAME.
* The usual smattering of coding policy fixes.

* Move clarification menu icon code from base board item object to the appropriate
  object.
* Remove left over French comments.
* Coding policy fixes.

Pcbnew: Fix bug 811437 . This bug (due to duplicate time stamps), cannot happen with usual boards, only when 2 identical board (from the same .brd file) are append.

* Move menu text code from base board item object to the appropriate
  object.
* Add helper to get board layer to base board item object.

Pcbnew: fix bug in D_PAD ctor: m_LengthDie not initialized. Disable m_LengthDie read from .brd files,
because this bug breaks compatibility with older version of Pcbnew , and the stored value as most of time no sense.
To enable m_LengthDie reading, see class_pad.cpp

All: use double instead of int to store zoom values.