test(node): add test utilities and basic specs for testing the express server
chore(karma): install karma-cli locally
docs(Readme): encourage pushing steps to bp.benchmarkSteps instead of window.
feat(conf): add ability to declare modules to be loaded into document
feat(scriptLoader): move script loading bootstrap to template
fix(build): use correct path for default buildPath
feat(bp): add API to register and select benchmark variables

Also port over large table benchmark from angular/angular.js to
test the new API.

Closes #10