Initial commit with project skeleton, major classes and methods.

Completes API query string building.
Completes the XML->NSDictionary mapper.

Completes the basic example.
Renames Classes to Source.
Completes the mapping of array elements, using the plural rule.
(E.g. <photos> containing <photo>'s)
Adds README
Updates README
Completes photo source URL provisioning
Completes login URL provisioning
Adds support for streamed HTTP message body sending.
This is mainly for large chunks of data (e.g. image files)
Adds a test for the newly completed streamed HTTP message body sending.
This test uses parts from Google Toolbox for Mac for a simple HTTP server.
Modifies one platform-specific conditional compilation.
Adds one more conditional compilation directive for building under 10.4 SDK
Applies MIT License header to all the files.
Adds -[OFFlickrAPIRequest callAPIMethodWithPOST:arguments:]
Completes image uploading mechanism; requires testing.
Renames SampleAPIKey.h; supply your own API key to build the examples here.
Adds a convenient method -[NSDictionary textContent:] in OFXMLMapper.

Completes image uploading method, not yet tested.
Ignores SampleAPIKey.h
Completes the image uploading feature and testing thereof.
Completes the basics of a Flickr iPhone app: SnapAndRun.

It demonstrates authentication, picking image, and uploading the photo.