A BSD-licensed single-header-single-source OAuth1 implementation.

Usage is fully documented in the header.

You will need to make your Xcode project link against CommonCrypto. Otherwise
just drag and drop. Or better yet, use git submodules:

    git submodule add https://github.com/tweetdeck/TDOAuth

Tested against Foursquare and Twitter. If you test it against something else,
please fork and list the services you used it against here. Thanks.

—Max Howell <max@tweetdeck.com>

Fixes in this fork:
* Maintain port number in sig base if provided
* Request params not duplicated in Authorization header
* Trailing slash maintained if provided in sig base

There's probably a cleaner way to implement these fixes, but I'm a newbie to Obj-C and time is an issue. 
Also contains POST customisation which sends JSON rather than form data. Use at your own risk.

Thanks.
-puug