Setup Gemfile for azure integration tests
Setup spec helper for azure integration tests
Added configuration files for azure integration tests
Added basic server create, delete, list and image list integration tests
Added integration tests for linux platform and some for Windows platform
Added integration tests for help and invalid publishsettings, id_rsa file
Incorporated review comments to change Copyright 2012 to 2013 and abstarct out azure source image to environment config file
Merge remote-tracking branch 'origin/OC-8420-knife-azure-integration-tests' into kaustubh-OC-8243-optimize