fix use of arg in ltn12
Copied socket_gaistrerror implementation from usocket to wsocket to allow Windows version to compile because it is missing the function. EAI_OVERFLOW and EAI_SYSTEM are commented out because they don't exist on Windows.
Merge pull request #24 from catwell/tracking-diego

fix use of arg in ltn12
Merge pull request #25 from ewmailing/unstable

Copied socket_gaistrerror implementation from usocket to wsocket to allo...
Fix ltn12 version.
Move Visual Studio projects to 2012.
Fix socket_accept usage to depend on family.
Remove warnings and fix makefile for Win32.
Cookie modifications.
fix use of arg in ltn documentation
remove uses of arg in the codebase
rockspec for luasocket 2.1 unstable
Use the length operator (#) instead of table.getn.

table.getn was deprecated in Lua 5.1 in favor of #, the length operator.
See: http://www.lua.org/manual/5.1/manual.html#7.2
Added inet_pton/inet_ntop for MinGW on Windows; compiles with Lua52.
Updated IPV6_V6ONLY to match header files on Windows.
Merge pull request #32 from ideka/unstable

Use the length operator (#) instead of table.getn.
Merge pull request #27 from catwell/pull-noarg

fix more uses of arg
Merge pull request #29 from keplerproject/94c958871919726f2954b3d3fa9a9f8ae21124e9

Rockspec for building and installing LuaSocket 2.1 with LuaRocks
lpr.lua: fix invalid string escape sequence \?

Not valid in 5.2 and luajit.
Merge pull request #37 from davidm/unstable

lpr.lua: fix invalid string escape sequence \?