JSON support to get parameters from response.
Added active and printStatusMessages parameters to config.
Removed services and tokens for providers.
Fixed show finished status message.
Add url maps only if plugin active.
Merge branch 'master' of https://github.com/enr/grails-spring-security-oauth into enr-master

Conflicts:
	SpringSecurityOauthGrailsPlugin.groovy
	grails-app/services/grails/plugin/springsecurity/oauth/TwitterSpringSecurityOAuthService.groovy
	src/groovy/grails/plugin/springsecurity/oauth/FacebookOAuthToken.groovy
	src/groovy/grails/plugin/springsecurity/oauth/GoogleOAuthToken.groovy
	src/groovy/grails/plugin/springsecurity/oauth/LinkedinOAuthToken.groovy
	src/groovy/grails/plugin/springsecurity/oauth/TwitterOAuthToken.groovy
	src/groovy/grails/plugin/springsecurity/oauth/YahooOAuthToken.groovy
Readme updated.
Remove tests for provider-specific controllers
Upgrade to Grails 2.3.3
Remove JDK 6 from Travis CI
Merge pull request #4 from enr/PR3

Manual merge PR3