Manual Merge: Copy the function Stop() from testutil/http.go in launchpad.net to czos/goamz/testutil/http.go. Also update existing tests to call Stop() method
Fix tests
Merge pull request #2 from czos/czupdates

Manual Merge: Copy the function Stop() from testutil/http.go in launchpad.net to czos/goamz/testutil/http.go. Also update existing tests to call Stop() method