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

 + Function name on newline
 + All function parameters on newline ( the first on function name line )

Update dutch language

translation of last french comments in dialog_edit_component_in_schematic.cpp, and minor enhancements
Update french dictionnary

+ Moved DIP Packages to dip_sockets.mod from support.mod
+ Made DIP Packages board
+ Dutch language update to 90%

Dutch language update
 - 182 strings left
 - 100 fuzzy strings left

 - 140 strings translated
 - 450 strings left

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

Added: Zones unfill in polygon mode

pcbnew: added oblong thermal relief for oblong pads (from a contribution) . added contributor to kicad list

eeschema: restore right value for m_Parent field member in SCH_COMPONENT::GenCopy() and SCH_COMPONENT::SwapData()

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