Adjust benchmarks to work better in older browsers.

[jdalton]

Adjust benchmarks to work better in older browsers.

[fat]

Wow @jdalton - thanks so much!! I'll take a close look into the namespace bug - @rvagg's pull request might address this too - as we're trying to move away from __uid all together towards something closer to the nwevents style registry.

[rvagg]

ya, I picked up that namespace bug and it's fixed it in #39

[jdalton]

The edge version of Benchmark.js supports string values for deferred tests as well as better mixed support, functions and strings, for setup, teardown and fn. An example of using pure strings can be found here.