fix handle enter focus
refine back end

Conflicts:
	routes/api.js
use bower
fix bower import in html

Conflicts:
	app/index.html

Conflicts:
	app/index.html
ng-src
Merge pull request #24 from Sfeir/step-11-editableinput-solution

Step 11 editableinput solution
Merge pull request #55 from lauterry/step-11-editableinput-solution

update from upstream