use new Cloudinary jQuery plugin in sample project
support pHash, support listing with start_at, upload preset API, upload with unsigned upload presets, background removal, dpr and responsive, return_delete_by_token support, custom coordinates
Merge branch 'master' of https://github.com/cloudinary/cloudinary_scala

Conflicts:
	cloudinary-core/build.sbt
	cloudinary-core/src/main/scala/com/cloudinary/Cloudinary.scala
	cloudinary-core/src/test/scala/com/cloudinary/ApiSpec.scala
	cloudinary-core/src/test/scala/com/cloudinary/UploaderSpec.scala