Expand console example to wait until completely logged in
Add documentation to Album subsystem
All libspotify pointers that are null are now cast to nil in Ruby
Add documentation to the Album browsing subsystem
Add documentation to Artist subsystem
Add documentation for Artist browse subsystem
Add documentation to Error subsystem
Add documentation for image subsystem
Add documentation for Inbox subsystem
Add partial documentation to Link subsystem
Reword README introductory session
Merge branch 'master' of github.com:Burgestrand/spotify

Conflicts:
	README.markdown
Document the final pieces left on Link (see #21)