feat(i18n): collect and convert locale info from closure

- add i18n/closure directory with closure i18n files and
  update-closure.sh script to update them
- generate.sh script runs node.js scripts that extract localization
  rules from the closure library, transform them to a more suitable
format and dumps them into i18n/locale directory as angular's $locale
services
- update Rakefile to copy i18n files to build/ and pkg/ dirs
- copy i18n stuff during rake build
- e2e tests for several locales

Rakefile

@@ -217,6 +217,8 @@ task :compile => [:init, :compile_scenario, :compile_jstd_scenario_adapter, :gen
         --language_in ECMASCRIPT5_STRICT \
         --js #{path_to('angular.js')} \
         --js_output_file #{path_to('angular.min.js')})
+
+  FileUtils.cp_r 'i18n/locale', path_to('i18n')
 end
 
 
@@ -252,6 +254,7 @@ task :package => [:clean, :compile, :docs] do
     FileUtils.cp(src, pkg_dir + '/' + dest)
   end
 
+  FileUtils.cp_r path_to('i18n'), "#{pkg_dir}/i18n-#{NG_VERSION.full}"
   FileUtils.cp_r path_to('docs'), "#{pkg_dir}/docs-#{NG_VERSION.full}"
 
   File.open("#{pkg_dir}/docs-#{NG_VERSION.full}/index.html", File::RDWR) do |f|

i18n/README.md

@@ -0,0 +1,12 @@
+# i18n directory overview:
+
+- closure/ - closure files we use for ruleset generation
+- locale/ - angular's locale ruleset files
+- src/ - source files
+- spec/ - spec files for stuff in src directory
+- generate.sh - runs src scripts on closure dir and stores output in locale dir
+- update-closure.sh - downloads the latest version of closure files from public svn repo
+
+The closure files (maintained by Shanjian Li (shanjian)) change very rarely, so we don't need to
+regenerate locale files very often.
+