Merge pull request #198 from AntonShevchuk/master

Updated version of JS libs loaded from CDN JS
Implemented G+ auth
Fixed codestyle
Merge pull request #199 from l2avenholm/master

G+ authentication
Merge pull request #200 from AntonShevchuk/master

Added Newman for tests
Added usage of HttpCacheControl component
Merge pull request #201 from AntonShevchuk/master

Update Bluz requirements
Merge branch 'master' of https://github.com/bluzphp/skeleton