Was previously failing as follows because an array
has no "callbacks" property.

oauth2-server/lib/oauth2server.js:217
  app.routes[method].callbacks.forEach(lockdownExpress3);
                                 ^
TypeError: Cannot call method 'forEach' of undefined
  at OAuth2Server.lockdown (oauth2-server/lib/oauth2server.js:217:36)

As requested by @thomseddon here:
https://github.com/thomseddon/node-oauth2-server/pull/119#discussion_r20351706

Minor grammar error

Typo in Readme.md

Closes oauthjs#120
Closes oauthjs#124
Closes oauthjs#132

changed error handler res.send to fix express deprecation warnings

Update docs for model function getAccessToken

Fix lockdown pattern for array of routes in express 3

Preivously the extended grant function only had access the client
credentials in the body, which could be different to the actual
authenticated client. This fix exposes the authenticated credentials
in req.oauth.client

Fixes oauthjs#96
Fixes oauthjs#125

- Currently supports password and refresh_token grants

URI as per RFC 3986 (http://tools.ietf.org/html/rfc3986#section-3)

…lient-creds-to-extended-grant

Expose validated client for extended grant

…t-allow-any-uri

Allow any valid URI for extension grants

http://tools.ietf.org/html/rfc6749#section-5.1

…headers

Set Cache-Control and Pragma Headers

Conflicts:
	Readme.md
	lib/error.js
	lib/grant.js
	lib/oauth2server.js
	package.json