renaming loggers to be more expressive
- logGreen => success
- logBlue => info
- logRed => error
- logYellow => warn
- log default to color=cyan
adding the compression middleware to gzip content when possible
/!\ compression may become problematic with server-sent events
see doc https://github.com/expressjs/compression
=> need to res.flush() at some point
- acceptRequest switches on relationStatus value
- renaming social_graph getUserRelationsIds -> getUserRelations (back)
- user.getUserRelations just proxies social_graph.getUserRelations
to let this module centralize interactions with the social graph
customizing no-js-analytics
auth.getUser returns userData with user relations
adding format options to user.getUsersPublicData:
  default: 'collection', option 'index'
fixing no-js-analytics renaming mistake
removing unused EmailCookie middleware
whitlisting the route for public items
renaming contacts => users
(following client-side renaming 9aac65c)
global libs extender initialize straight on module.exports
less verbose graph base