v6.1.0

* ADDED Some helm faces

  Add the helm faces: `helm-M-x-key`, `helm-buffer-directory`,
  `helm-buffer-file`, `helm-buffer-not-saved`, `helm-buffer-process`,
  `helm-buffer-size`, `helm-match`, `helm-selection`,
  `helm-source-header`, `helm-ff-directory`, `helm-ff-dotted-directory`,
  `helm-ff-executable`, `helm-ff-file`, `helm-ff-invalid-symlink`,
  `helm-ff-symlink`.

* ADDED Some circe faces

  Add the circe faces: `circe-highlight-nick-face` and
  `circe-server-face`.

* ADDED Some lui faces

  Add the lui faces: `lui-button-face`, `lui-time-stamp-face`.

* ADDED CSS faces

  Add the CSS faces: `css-property`, `css-selector` and
  `css-proprietary-property`.

* ADDED `magit-section-highlight` face

* ADDED `highlight-numbers-number` face

* FIXED Make markdown header faces work without loading Org

  Stop making the `markdown-header-face-*` faces inherit from the
  equivalent `org-level-*` faces, this kept the markdown faces from
  working if Org mode wasn't loaded.