* plunker builder removes files and scripts not needed in plunkers (e.g., systemjs.config.js)
* no longer adds placeholder README.md (deemed a distraction)
* tag is now "Angular" instead of "Angular2"
* new plnkr.json "includeSystemConfig" option adds systemjs.config.js back; needed for testing plnkrs.
* incidentally changes comment "Polyfill(s)" to "Polyfills" in all index.html
* chore(test): add protractor4
* fix lint, remove boilerplate files, fix less gen
* separate scripts between package.json
* ignore a2docs.css in boilerplate
* remove tslint in _examples
Ward Bell
Jesús Rodríguez
Filipe Silva