Add support for SoundCloud (soundcloud.com)
Merge branch 'master' of https://github.com/borismus/keysocket

* 'master' of https://github.com/borismus/keysocket: (35 commits)
  Add more docs about Go version of client.
  Update readme
  Drop manifest version to 2 from 3. Missed that in the previous merge.
  Fix up jshint errors
  Remove duplicated code
  Update readme
  Change manifest version to 0.4.7
  support for deezer.com
  Update manifest version and add spotify support to Readme
  Add support for spotify
  Update yandex keys to be the same as all the other sites.
  Add jango and tracksflow support
  Merge Yandex.Music support.
  Bump version and make slacker code work with http or https
  Added support for Slacker and updated README
  Update readme to mention linux server.
  Update Readme and manifest for Youtube support.
  General cleaning
  Update manifest as per @hobeone 's suggestion
  Remove binaries
  ...
Merge branch 'soundcloud' of https://github.com/flxb/keysocket

* 'soundcloud' of https://github.com/flxb/keysocket:
  Add support for SoundCloud (soundcloud.com)

Conflicts:
	README.md
	extension/manifest.json