Added Handlebars lightncandy in PHP as new test suite
Rewrote runall to be cleaner, simpler, and to output min/max/avg.
Merge pull request #3 from shahyar/master

Thanks Shahyar!

I'll add kotasm / tassembly to the runall script too and re-run the benchmarks later today. We should also port tassembly to PHP until next week so that we can get perf for that as well.

Re min/max: In my experience looking for min is the most accurate measure for micro-benchmarks like these, as higher numbers are normally caused by background activity.