draft script to download Adobe AIR and configure a SDK to use it

git-svn-id: https://svn.apache.org/repos/asf/flex/sdk/branches/develop@1434575 13f79535-47bb-0310-9956-ffa450edef68
helps if I uncomment working code

git-svn-id: https://svn.apache.org/repos/asf/flex/sdk/branches/develop@1434576 13f79535-47bb-0310-9956-ffa450edef68