Misc small changes.

Rakefile

@@ -220,6 +220,7 @@ namespace :spec do
     title 'Running the specs'
     sh "bundle exec bacon #{specs('**')}"
 
+    require 'pathname'
     unless Pathname.new(ENV['HOME']+'/.cocoapods/repos/master').exist?
       title 'Ensuring specs repo is up to date'
       sh    "./bin/pod setup"

lib/cocoapods/command/setup.rb

@@ -6,7 +6,7 @@ module Pod
       self.summary = 'Setup the CocoaPods environment'
 
       self.description = <<-DESC
-        Creates a directory at `~/.cocoapods` which will hold your spec-repos.
+        Creates a directory at `~/.cocoapods/repos` which will hold your spec-repos.
         This is where it will create a clone of the public `master` spec-repo from:
 
             https://github.com/CocoaPods/Specs