Created an error for SUBREDDIT_NOEXIST.
Fixed an issue where subreddit names were being submitted incorrectly.
Update the example of getting comments from a link.
Add support for retrieving a link's short URL.
Add support for the upvote_ratio attribute on links.
Update the release notes for 1.2.
Update the podspec for 1.2.
Update the version number listed in the README.
Add support for getting the expanded information of a link.
Add a default task for the Rakefile.
Update the AFNetworking submodule.
Merge pull request #31 from rickharrison/submission-fixes

Added support for SUBREDDIT_NOEXIST errors.
Improve error handling for subreddits.

When retrieving a subreddit via subredditWithName:, the response for
entering a name which does not exist is an empty listing, not an error.

This commit now checks to see whether we got back the right type of
object, and returns an error if we did not.
Add a badge for Travis.
Integrate Specta and Expecta and move the first test file over.
Move the CAPTCHA and RKCreated tests to Expecta.
Rewrite more tests, and remove the old XCTestCase subclass.
Further tests moved to Expecta syntax.
Run Synx on the test project.
Finish the move to Expecta.