Update README.md
Merge branch 'master' of github.com:irace/tumblr-ios-sdk
Updating README
Fix type check
Proper response status code handling
Posts, drafts, queue, submissions
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User and tagged routes
Slight refactoring, avatar downloads
Use separate queue instance rather than shared
Refactor, add POST methods
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Merge upstream JXHTTP changes
Break API methods out into separate files
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More README
Update README.md
Update README.md
Update README.md
Update README.md