Code clarification about 3 confusing functions to display info: DisplayInfo (displaying a message info) and class members DisplayInfo and Display_Infos doing the same thing (see changelog)

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.

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

Improved grid implementation, 3D viewer debug assertion fix, moved drawpanel.cpp to common library, and added WinEDA_Appl declaration.

change EXCHG macro to equivalent inline functions
(better code compatibility with some compilers)

* Require CMake version 2.6.1 on Windows and version 2.6.0 for other systems.
* Update FindSubversion to version from CMake 2.6.1 (localization issue solved).
* Remove FindwxWidgetsCVS and use the default one (some issues solved upstream).
* Formatting style changes.

pcbnew: Excellon files use only ascii codes in comments (some excellon parsers do not like I18n)

Fixed all related files also.