Add tools/link.bat, unlink.bat, and copydir.bat

misc/pascal/nuttx/Makefile

nuttx/ChangeLog

nuttx/Documentation/NuttX.html

nuttx/Documentation/NuttxPortingGuide.html

nuttx/configs/amber/hello/Make.defs

nuttx/configs/avr32dev1/nsh/Make.defs

nuttx/configs/avr32dev1/ostest/Make.defs

nuttx/configs/cloudctrl/nsh/Make.defs

nuttx/configs/demo9s12ne64/ostest/Make.defs

nuttx/configs/ea3131/nsh/Make.defs

nuttx/configs/ea3131/ostest/Make.defs

nuttx/configs/ea3131/pgnsh/Make.defs

nuttx/configs/ea3131/usbserial/Make.defs

nuttx/configs/ea3131/usbstorage/Make.defs

nuttx/configs/ea3152/ostest/Make.defs

nuttx/configs/eagle100/httpd/Make.defs

nuttx/configs/eagle100/nettest/Make.defs

nuttx/configs/eagle100/nsh/Make.defs

nuttx/configs/eagle100/nxflat/Make.defs

nuttx/configs/eagle100/ostest/Make.defs