Adding io doc code test
Added runtests.bat to enable fairly rudimentary support for running article tests on windows
Merge pull request #41 from chrisbu/windows_test_script

Added runtests.bat for windows support
Fix missing imports and updated article
Merge pull request #40 from financeCoding/io_article_code

Adding io doc code test
Added a file with all of the code from the future article.
Merge pull request #44 from dart-lang/futures_and_errors_handling_tests

Added a file with all of the code from the future article.