separate test results https://codereview.appspot.com/10373044
separate test results
https://codereview.appspot.com/10373044

right now, we generate a test report in the same directory
we save test logs, which is inconvenient because the test summary
is an index.html file, making it difficult to use a webbrowser to
look at other files in that directory.

this change moves results, reports, and capture into separate
subdirectories.

R=kpreid2



git-svn-id: eb21526166532bd3afc2c1499c0cf105ce815f5a@5454 360991c0-9f3b-0410-ba87-8b362a00edf4

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