Update protractor_install command for protractor 0.14.0

https://github.com/angular/protractor/blob/master/CHANGELOG.md
Update package.json for protractor ~0.14.0
Update protactor.conf

As per https://github.com/yearofmoo/angularjs-seed-repo/pull/9#issuecomment-31020498
Merge pull request #9 from sublimino/patch-1

Update protractor_install command for protractor 0.14.0