Merge pull request #6 from TheWeatherCompany/windows-support

tests for using "reboot" flag for machine images
tests for altering a vm

ref TheWeatherCompany/grid-api#122
Merge pull request #7 from TheWeatherCompany/bug-fix-enhancement-2013-09

modify instance changes
Merge pull request #13 from TheWeatherCompany/develop

test for alerting a vm