Add post for SR's R short course.
Move registration link to top of post.
Adding MailChimp signup.
Clarify that mailing list is announcements.
	new file:   _posts/2014-10-22-shippable.md
Don't need one more logo.
	new file:   2014-11-03-labkey.md
Adding names for LabKey.
	new file:   2014-10-27-bioconductor.md
	new file:   _posts/2014-11-07-intermediate-R.md
Add introductory R course material.
Add lesson data files.
Simplifying and shortening. Also apl.
Reorder article tags.
Sort 'Getting Started' by article tags.
Rebuild pages.
Merge branch 'gh-pages' of git+ssh://github.com/fhcrcio/fhcrc.io into gh-pages
better about
Link to apl instead of shapley.
Tidy up resources and add some internal links.