* Add default OS program install path(s) to search path list as fail safe.
* Remove unnecessary wxGetApp calls in WinEDA_App class methods.
* Remove non-standard message panel font and changed background to system menu color.
* Remove italic fonts from menus.
* Remove non-standard font in Kicad app project tree.
* Remove font selection dialog menu items from apps for removed fonts.
* Remove all global variables and settings associated with the removed fonts.
* Fixed PCBNew export and import library file dialog response tests from wxCANCEL to wxID_CANCEL.

better handling of libraries paths (removed g_RealLibraryBuffer that had no sense with the new code), mainly in Eeschema
TODO: better handling of user lib paths (more than one path)

Add helpers for inserting paths to and removing paths from search list.
Moved user defined path before default library paths in search list.
Renamed m_Draw_Auxiliary_Axis to DrawAuxiliaryAxis.
Changed parameter to fix wxDC set mode from FALSE to GR_COPY.
Minor wxDC zoom improvements.

UpdateStatusBar() not callable from RedrawActiveWindow on MAC, and it is not the right place to call it for other OSes even though it might work on those other OSes such as Windows and Linux

Added application method to fix searching for user libraries.
Fixed documentation search path bug.
Moved auto pan setting from draw frame to draw panel were it is defined.
Some minor device context drawing changes.

eeschema: fixed: void history file list in menu

Global variable unobfuscation, new library path search, and lots of other changes.  See CHANGELOG.txt.

pcbnew: added 5 metric grids and fixed a very minor bug when creating drill map.

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