ThreadGroup.workers() returns number of CPUs if value is -1
README: update recommedations on wldap32.dll
util_lua: define conversion for int64_t on 32-bit platforms

Luabind defines conversion for long, which is equal
to int64_t on 64 bit platforms.
lua_lib: fix mistake in arg_value()
README: add Changelog
typo in README
move windows-build files to subdir windows/

--HG--
rename : windows-build-requirements => windows/build-requirements
rename : windows-build.sh => windows/build.sh
add script building windows zip package
README: put paths to files in ` `
windows package: chmod +x *.exe
windows/build.sh: use current source of npge (no download)
windows package: include README.html
AllOptions: no <br> in the beginning
add icon npge.ico
windows: LICENSE, AUTHORS, All(Processors|Options).html
gui: use icon
add nsis wizard
README: add instructions on how to make Windows packages
bugfix version 0.1.1
Added tag 0.1.1 for changeset db347f750631