Increment version to v1.0.74: Support custom_coordinates in upload and update. Support coordinates in resource details. Support delete_by_token for direct uploads. Support shorthand blank for cl_image_tag with responsive/hidpi. Correctly encode one-level double arrays. Support non-upload resources in signed_preloaded_image (Issue #117). Support background removal upload and admin API parameter. Update Cloudinary's jQuery plugin to v1.0.19.