Add a .gitignore, now this project is in git.

.gitignore

@@ -0,0 +1,139 @@
+*.o
+.dirstamp
+.deps
+/*.pdb
+/*.ilk
+/*.res
+/*.RES
+/*.pch
+/*.rsp
+/*.obj
+/*.exe
+/*.ncb
+/*.plg
+/*.dsw
+/*.opt
+/*.dsp
+/*.tds
+/*.td2
+/*.map
+/Makefile.bor
+/Makefile.cyg
+/Makefile.vc
+/Makefile.lcc
+/MSVC
+/*.log
+/*.GID
+/local
+/Output
+/pageant
+/plink
+/pscp
+/psftp
+/putty
+/puttytel
+/puttygen
+/pterm
+/*.DSA
+/*.RSA
+/*.cnt
+/*.hlp
+/.bmake
+/build.log
+/build.out
+/uxconfig.h
+/empty.h
+/config.status
+/Makefile.am
+/Makefile.in
+/Makefile
+/compile
+/config.status
+/configure
+/stamp-h1
+/aclocal.m4
+/ar-lib
+/autom4te.cache
+/depcomp
+/install-sh
+/local
+/missing
+/uxconfig.in
+/uxconfig.h
+/*.a
+/charset/sbcsdat.c
+/contrib/cygtermd/cygtermd.exe
+/doc/*.html
+/doc/*.txt
+/doc/*.cnt
+/doc/*.hlp
+/doc/*.gid
+/doc/*.GID
+/doc/*.chm
+/doc/*.log
+/doc/*.1
+/doc/*.info
+/doc/vstr.but
+/doc/*.hhp
+/doc/*.hhc
+/doc/*.hhk
+/icons/*.png
+/icons/*.ico
+/icons/*.xpm
+/icons/*.c
+/macosx/Makefile
+/macosx/*.app
+/macosx/puttygen
+/macosx/plink
+/macosx/psftp
+/macosx/pscp
+/testdata/bignum.txt
+/unix/Makefile.gtk
+/unix/Makefile.ux
+/unix/Makefile.local
+/unix/empty.h
+/unix/plink
+/unix/pterm
+/unix/putty
+/unix/puttytel
+/unix/psftp
+/unix/pscp
+/unix/puttygen
+/unix/stamp-h1
+/unix/*.log
+/unix/.deps
+/windows/*.pdb
+/windows/*.ilk
+/windows/*.res
+/windows/*.RES
+/windows/*.pch
+/windows/*.rsp
+/windows/*.obj
+/windows/*.exe
+/windows/*.ncb
+/windows/*.plg
+/windows/*.dsw
+/windows/*.opt
+/windows/*.dsp
+/windows/*.tds
+/windows/*.td2
+/windows/*.map
+/windows/Makefile.bor
+/windows/Makefile.cyg
+/windows/Makefile.vc
+/windows/Makefile.lcc
+/windows/MSVC
+/windows/DEVCPP
+/windows/VS2010
+/windows/VS2012
+/windows/*.log
+/windows/*.GID
+/windows/local
+/windows/Output
+/windows/*.DSA
+/windows/*.RSA
+/windows/*.cnt
+/windows/*.hlp
+/windows/.bmake
+/windows/*.sln
+/windows/*.suo