refactor(benchmarks): make setup nicer

- simplify and correct systemjs config
- remove deep imports into Ng2 packages to work with bundles
- have separate Ng2 and Polymer bootstrap files

scripts/ci-lite/install.sh

@@ -58,7 +58,7 @@ echo 'travis_fold:end:install.browserstack'
 # node tools/chromedriverpatch.js
 $(npm bin)/webdriver-manager update
 
-# TODO: install bower packages
-# bower install
+# install bower packages
+$(npm bin)/bower install
 
 echo 'travis_fold:end:INSTALL'