Merge pull request #59 from chopachom/master

refactoring: moving socket.io, app configuration and middleware components to plugins
Merge pull request #60 from chopachom/master

Refactoring: moving models to core plugins
Merge pull request #61 from chopachom/master

Refactoring: moving all strategies to plugins
Merge pull request #62 from chopachom/master

fix(oauth): show error if user links already linked account
Merge pull request #63 from chopachom/master

chore(README): new Readme file (old is still present)
chore(readme): fix typo
fix(test): increase setup timeout
chore(grunt): automatically add ngdocs directives in README.md
feat(socket-io): add notify:sio relayer
feat(socket-io): pubsub implementation
feat(socket-io): publish to object list rooms
feat(core/api): route get current user profile