Remove js3 dependency and support
Explicitly enable elisp-slime-nav, since upstream no longer does this
Don't disable todochiku if todochiku-command is not a full path

Fixes #101
Change duplicate-line into duplicate-line-or-region

Closes #102
Load org features more lazily (or just implicitly)
Fix file extension regexes
Remove defunct autoload for inf-ruby
Merge branch 'master' into mike-dev