JS course improve code.
New example of angularjs app.
Merge remote-tracking branch 'origin/master'

Conflicts:
	javascript/angularapp1/public/javascripts/app.js
	javascript/angularapp1/views/layout/foot.ejs
	javascript/angularapp1/views/layout/head.ejs
	javascript/angularapp1/views/layout/nav.ejs