Speed up the build

[searls]

Try to make npm run test:ci faster by sprinkling in some parallel tasks, particularly (a) the styling + the tests and (b) each of the example projects. All results local.

master:

real	1m21.797s
user	1m18.127s
sys	0m15.781s

with npm-run-all's run-p:

real	0m53.442s
user	1m42.984s
sys	0m18.903s

[searls]

The differences on travis were pretty dramatic despite small sample size.

Master:

This branch

Master is an outlier, but this patch would probably reduce variability by running things parallel rather than serially

[searls]

Okay, and I figured out why standard had been taking 30s. Turns out its deglob dependency redundantly ends up traversing ignored directories unless they're explicitly ignored like "examples/**", which cut our lint time from 30s to 1s.

The time for npm run test:ci is now down to:

real	0m35.419s
user	1m12.684s
sys	0m11.266s

[searls]

Each travis build was also a good bit faster:

[searls]

Going to merge now. Cache slowed build down but we should watch it over 2 or 3 builds on master to see if that was a one time cost

[searls]

To close the loop, after warming the cache on master travis is indeed faster with the various node_modules directories cached