first commit
added environment_configurations in the_rails3_way
updated rail3_way/environment_and_configuration.md
added controller.md

about Rack and Action Dispatch
added render part in rails3_way/controller.md
added dispatch_me example in chap4(controller)
added vim: install vim with ruby support
added umeng_rails_cache.md: basic cache stuffs
added git note
updated git and vim notes
added markdown test file
added deploy doc
added ruby-notes
updated startup and application settings
added markdown test file
updated startup and application settings
updated ^<n> and ~<n> in git
added mock_and_stub rspec note
<ruby-note> addedd Array#pack, String#unpack
added review_on_train about app_tag featrue