Changed the time attribute to duration. Test duration is now working.
Added start and end datetime for all suites and tests in UTC
Switched the nunit2 test run time back to 3 digits of accuracy
Making sure the test-harness and nunitlite report the same results
Code cleanup based on code-review
Switched the test timing to use a StopWatch based on code review.
Merge pull request #94 from nunit/feature-time-of-execution-31

Report start and end time of test execution