add Provider resource
add ProviderData resource
update Client - expand provider if exists
add Application.getAccount
add Directory.getProvider
add Account.getProviderData
add docs
add test to Social Login support methods
add google integration sample
add facebook integration sample
make jshint happy
fixed facebook integration sample
updated accordingly to comments
Merge branch 'master' into social_login_support

Conflicts:
	docs/app/scripts/controllers/mainNav.js
	docs/app/views/application.md
	test/common.js
	test/sp.resource.application_test.js
Merge pull request #26 from valorkin/social_login_support

Social login support