Create binging.gyp for node >0.8

node-waf program is removed for node v0.8, and node-gyp is replaced it.
See more from https://github.com/TooTallNate/node-gyp.
fixes for gyp file
Update build.sh to use node.gyp
Fix compiling on node v0.10.2
add binding.gyp
add package.json
added index.js which uses the bindings module
add node_modules to .gitignore
remove static ldapauth.node and wscript
Merge git://github.com/jupe/node-ldapauth into jupe

Conflicts:
	binding.gyp