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* Increment to version 1.0.13: Support overwrite upload parameter. Support tags in admin API resource listing. Support specifying face coordinates in upload API. Support specifying context (currently alt and caption) in upload API and returning context in API. Support specifying allowed image formats in upload API. Support listing resources in admin API by multiple public IDs. Send User-Agent header with client library version in API request. Support for signed-URLs to override restricted dynamic URLs. Use api.Error instead of Exception in uploader module. Support deleting all resources in Admin API.
* add user agent
* support for: context, allowed_formats, face_coordinates, signed_url, search by public ids, context and tags in lists
* Merge pull request 24 from stylight/master
* uploader module: Use api.Error instead of Exception
* add delete_all_resources, add support for overwrite flag in upload, add support for tags flag in resources_by_tag, add support for query parameters in CLOUDINARY_URL