- Added the courtyard/fabrication layer to the layer combo and layer
  panel
- Corrected handling of scrollability in layer panel (fixes 1336996)
Pcbnew, Gerbview : fix crash when updating the layer manager.
Pcbnew: Rework on Gerber ouput: allows choice between format 4.5 and 4.6. Fix a minor issue in Gerber layers attributes.
fix print issue when printing each layer on a separate page.
Pcbnew: fix read .kicad_pcb file error when an outdated plot parameter is found. Now  outdated plot parameters are just ignored
Update old demo board files. Minor code cleaning.
Added missing support for reading the *.CrtYd layer token
fix Inner1.Cu in pcb_parser.cpp, start cvpcb work.
fix Inner1.Cu in pcb_parser.cpp, start cvpcb work.
Update demo files
typo on B_CrtYd, F_CrtYd, B_Fab, F_Fab
back annotation when CVPCB and EESCHEMA are running under KICAD
add aDocName to NETLIST::Format()
netlist_stuff
backanno
Bugfix: Bottom layer not correctly handled in (PNS) Interactive router.
Fixed vertical alignment for strings that contain a newline character at the end (GAL).
switch back to original sexpr usage of PTREE, add new DSNLEXER constructor, enforce accessors in kicad.exe
kicad.exe work:
*) re-enable the MacOpen() support.
*) fix path truncation bug.
*) open *.kicad_pcb and *.sch files in the same process if they are part of the 
   the currently open project, even from the tree view.
Gerber files generation: fix a rounding issue when drawing circles. (explains bug Bug #1339086 ).
Gerbview: allows x.7 format (recently indroduced in Gerber format)
Also minor coding style fixes.