Merge pull request #33 from emmajane/master

Clarified steps for new users.
Merge pull request #35 from emmajane/master

Blog skeleton is not a subproject as implied.
Moved SculpinKernel to the correct location.
Added documentation on source file formatting.

- Removed most of the content from basic-project as it is now a
  duplicate of the getting started guide. Kept the directory
  structure, will add links from this file to relevant pages as they
  are created.
- Moved frontmatter YAML information to the custom content type page.
- Heavily modified the sources file to make it more about the
  the default format for this file, and how it will be output.