added Rakefile and Gemfile

Gemfile

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+source 'http://rubygems.org/'
+
+gem 'rake'

Gemfile.lock

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+GEM
+  remote: http://rubygems.org/
+  specs:
+    rake (0.9.2.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rake

Rakefile

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+# encoding: utf-8
+
+$HOME = File.expand_path(ENV['HOME'] || '~')
+$DOTFILES = File.expand_path('..', __FILE__)
+$DOTPFILES = "#{$DOTFILES}/private"
+
+desc "Create all symlinks in home folder (#{$HOME})"
+task :symlink => 'symlink:all'
+task :link    => 'symlink:all'
+
+namespace :symlink do
+
+  # Paths to symlink from dotfiles
+  paths = [
+    'bundle', 'emacs.d', 'erlang', 'gemrc', 'gitconfig', 'gitignore',
+    'hgrc', 'irbrc', 'powconfig', 'rspec', 'tmux.conf'
+  ]
+
+  # Target directory to put symlinks in (defaults to home folder).
+  target = File.expand_path(ENV["TARGET"] ? ENV["TARGET"] : $HOME)
+
+  task :dotfiles do
+    link_paths($DOTFILES, "#{target}/.dotfiles")
+  end
+
+  desc "Execute \"rake symlink\" in #{$DOTPFILES}"
+  task :private do
+    system "rake --rakefile=\"#{$DOTPFILES}/Rakefile\" symlink"
+  end
+
+  task :all => ["symlink:private", "symlink:paths", "symlink:shell_loaders"]
+
+  task :paths => :dotfiles do
+    paths.each do |path|
+      link_paths(".dotfiles/#{path}", "#{target}/.#{path}")
+    end
+  end
+
+  task :shell_loaders => :dotfiles do
+    link_paths(".dotfiles/load_shellrc.sh", "#{target}/.profile")
+    link_paths(".dotfiles/load_shellrc.sh", "#{target}/.zprofile")
+  end
+end
+
+namespace :install do
+  desc "Install Homebrew"
+  task :homebrew do
+    system '/usr/bin/ruby -e ' +
+      '"$(curl -fsSL https://raw.github.com/gist/323731)"'
+  end
+
+  desc "Install rbenv to #{$HOME}/.rbenv"
+  task :rbenv do
+    target = File.join($HOME, '.rbenv')
+    git_clone('git://github.com/sstephenson/rbenv.git', target)
+  end
+
+  desc "Install nvm to #{$HOME}/.nvm"
+  task :nvm do
+    target = File.join($HOME, '.nvm')
+    git_clone('https://github.com/creationix/nvm.git', target)
+  end
+
+  desc "Install virtualenv-burrito"
+  task :virtualenv do
+    system 'curl -s https://raw.github.com/brainsik/virtualenv-burrito/' +
+      'master/virtualenv-burrito.sh | bash'
+  end
+end
+
+
+def link_paths(src, to)
+  if !File.exists?(to)
+    puts "  symlink: #{to} --> #{src}"
+    File.symlink(src, to)
+  else
+    puts "   exists: #{to}"
+  end
+end
+
+def git_clone(repo, target)
+  if File.exist?(target)
+    puts "#{target} already exists."
+  else
+    system "git clone \"#{repo}\" \"#{target}\""
+  end
+end