ruby 2.1 uses different environment variables
irbrc: don't use rubygems, inform about installing wirble
ruby: make GC settings dependent on ruby version
more packages
more modes
use Menlo font in emacs
ido-mode for buffer select
Carton is now called Cask
don't use desc for leiningen
enable C extensions for JRuby
emacs: added 4clojure and xkcd packages
emacs: no need to require, pretty-mode has autoloads now
emacs: use slim-mode for emblem
removed empty line
emacs: ignore some working directories
start firefox from command line
start cocoa emacs from command line
pryrc: warn when pry-doc is not installed
emacs: couple more packages
emacs: couple more customizations