update dependencies across development repos

Gemfile

@@ -1,17 +1,16 @@
 source "http://rubygems.org"
 
-gem 'arel', :path => "./vendor/arel"
-gem 'rails', :path => "./vendor/rails"
+%w[arel rails].each do |lib|
+  gem lib, :path => File.expand_path("../vendor/#{lib}", __FILE__)
+end
 
-gem 'rspec-rails', :path => "."
-gem 'rspec-core', :path => "../rspec-core"
-gem 'rspec-expectations', :path => "../rspec-expectations"
-gem 'rspec-mocks', :path => "../rspec-mocks"
-gem 'rspec', :path => "../rspec"
+%w[rspec-rails rspec rspec-core rspec-expectations rspec-mocks].each do |lib|
+  gem lib, :path => File.expand_path("../../#{lib}", __FILE__)
+end
 
-gem 'cucumber', '~> 0.9.2'
-gem 'aruba', "~> 0.2.3", :require => nil
-gem 'webrat', ">= 0.7.2.beta.1"
+gem "cucumber", "0.8.5"
+gem "aruba", "0.2.2"
+gem 'webrat', "0.7.2"
 gem 'sqlite3-ruby', :require => 'sqlite3'
 
 gem 'autotest'