add login_hint as a valid parameter to pass through to the google authorization endpoint
Merge pull request #8 from blaine/master

This parameter allows providers who know the email address of the user to bypass the account chooser prompt screen
Add hd and prompt parameters /via @jfromaniello
Documentation and tests for additional authorization params.
Add support for user_id authorization param.
Update project metadata.
Test on Node 0.8 using Travis CI.
Bump version to 0.1.5.
Clarify README.
deprecated method createServer()
Merge pull request #14 from ashishtilara/patch-1

deprecated method createServer()
Syntax highlighting Javascript on README.md
Merge pull request #24 from ctesniere/patch-1

Syntax highlighting Javascript on README.md
change to v2