Use Ruby
Add package archive for testing
Add org-mode face
Add enh-ruby-mode faces
Add file-local variables
Implement toggling between dark and light theme
Fine tune company completion behavior
Implement buffer clearing command
Partially implement CIDER-style clean up

CIDER has an interesting feature for dealing with REPL output that slows
it down considerably.  Instead of just clearing the entire buffer by
setting the maximum buffer size to zero and telling comint to truncate
it, it deletes the last output generated by the last command and
replaces it with an appropriate comment.  This is a much more sensible
thing to do since it is pretty likely that the last command executed
made the REPL slow down, not its entire contents.  A well executed
version could make it upstream and could be available for every
comint-derived mode.
Add ERB templates
Adjust CSS offset
Add Java to the automagically expanded modes
Make smartparens less annoying
Add TODOs, rename
Fix playback when advancing too far
Use keyboardcat for the demo
Don't set indentation mode twice
Remove annoying setting
Fontify code blocks when possible
Add extra templates