My actual .emacs configuration.

Installed packages:
===================
  ac-c-headers       20131015.... installed  auto-complete source for C headers
  ac-inf-ruby        20131115.350 installed  Enable auto-complete in inf-ruby sessions
  auctex             11.87.5      installed  Integrated environment for *TeX*
  auto-complete      20140519.650 installed  Auto Completion for GNU Emacs
  auto-complete-a... 20140223.958 installed  auto-completion for auctex
  auto-complete-c... 20140325.835 installed  An auto-complete source for C/C++ header files
  enh-ruby-mode      20140520.... installed  Major mode for editing Ruby files
  git-commit-mode    20140313.... installed  Major mode for editing git commit messages
  git-rebase-mode    20140313.... installed  Major mode for editing git rebase files
  inf-ruby           20140428.201 installed  Run a Ruby process in a buffer
  magit              20140522.... installed  control Git from Emacs
  popup              20140207.... installed  Visual Popup User Interface
  ruby-additional    20140422.... installed  ruby-mode extensions yet to be merged into Emacs
  ruby-block         20131211.331 installed  highlight matching block
  ruby-compilation   20140508.246 installed  run a ruby process in a compilation buffer
  ruby-end           20131016.37  installed  Automatic insertion of end blocks for Ruby
  web-mode           20140525.... installed  major mode for editing html templates
  yasnippet          20140514.... installed  Yet another snippet extension for Emacs.