Merge branch 'skyrock'

Conflicts:
	README.md

Minor tweaks to README

Merge remote-tracking branch 'origin/RB-0.4'

Conflicts:
	README.md
	examples/app.js
	lib/auth.strategies/google2.js
	package.json

Updating Google's OAuth2 strategy to request the user profile (and op…

…tionally the user's email address)

Bumping version and updating readme

Updated Linkedin & Yammer strategies (Yammer not yet tested, can't ge…

…t a dev account)

Bumping version number

Bumping version number (0.4.0)

Added new strategy for Google OAuth2

Sort out the package.json (was missing in the npm registry?)