Don't turn parameters like "?foo=bar&foo=baz" into "?foo[0]=bar&foo[1]=baz"
Create a real error object on bad HTTP response
Allow extraParams in signUrl and authHeader
Merge branch 'allow-multi-value-parameters' of github.com:garymullen/node-oauth
Merge branch 'oauth_error_class' of github.com:evanp/node-oauth

Conflicts:
	lib/oauth.js
Merge branch 'master' of github.com:chbrown/node-oauth
Changed order of response & data parameters.