fixed whitespace in binding.gyp
build on OS X

Requires clang for C++11 support, hence the xcode_settings.
adjusted node-lmdb.h and binding.gyp for the bundled lmdb
fixed examples
updated readme
add: keyIsUint32 option on openDbi for specifying that keys are unsigned integers
doc update
add: new APIs for cursor
fixed dupsort example
add: cursor.goToDup and cursor.goToDupRange
fixed dupsort example
add: cursor.del
added package.json (setting version to 0.0.1) and added shortcut index.js
clarified first example
added ability to use some env flags
added new example for totally async IO
added support for mdb_env_set_mapsize
getting ready for release to npm
0.1.0
removed unneeded file