Benchmarks

Benchmarks run using [benchmark.js](http://benchmarkjs.com). Sample output:

```
Templating without HTML escaping...

riot x 1,537,405 ops/sec ±0.57% (101 runs sampled)
mustache x 101,163 ops/sec ±0.91% (102 runs sampled)
tmpl x 265,611 ops/sec ±1.01% (99 runs sampled)
underscore x 111,216 ops/sec ±0.45% (97 runs sampled)
ejs x 150,183 ops/sec ±0.80% (99 runs sampled)

Templating with HTML escaping...

riot x 82,660 ops/sec ±0.71% (95 runs sampled)
mustache x 44,199 ops/sec ±0.47% (99 runs sampled)
ejs x 42,785 ops/sec ±1.33% (100 runs sampled)
```