Modified README and added notes to application.yml for changes made

Author: tnwang

Diff for: README.md

@@ -2,7 +2,7 @@
 
 This repo holds separate sample applications for each one of the four OAuth 2.0 grant types supported by the Pivotal Single Sign-On Service. The GRANT_TYPE environment variable is already set to the relevant value mentioned below for each sample application. Each grant type maps to an Application Type as seen in the Pivotal Single Sign-On Service Dashboard.
 
-The latest version of this repository supports Spring Boot 1.5. The last version to support Spring Boot 1.3 is tagged at [spring-boot/1.3](https://github.com/pivotal-cf/identity-sample-apps/releases/tag/spring-boot%2F1.3).
+The latest version of this repository supports Spring Boot 1.5.5+ and requires the SSO connector 2.1.1+. The last version to support Spring Boot 1.3 is tagged at [spring-boot/1.3](https://github.com/pivotal-cf/identity-sample-apps/releases/tag/spring-boot%2F1.3).
 
 Application Type  | Grant Type
 ------------- | -------------
@@ -62,6 +62,8 @@ It has three API endpoints:
 
 To push the app, follow steps [1](#step-1) and [2](#step-2) of the previous section.
 
+Beginning with our Spring Boot 1.5 version of the identity sample applications, you may also bind the Resource Server to the Single Sign-On Service instead of providing the AUTH_SERVER value.
+
 ## Setting up Authcode Sample App to use Resource Server
 
 Currently, only the authcode sample app uses the resource server, but the other grant types should be similar.

Diff for: resource-server/src/main/resources/application.yml

@@ -16,9 +16,12 @@ security:
     resource:
       preferTokenInfo: false
       userInfoUri: ${AUTH_SERVER}/userinfo
+      # Token Info endpoint is used for online token validation. If Token Keys endpoint (jwk.key-set-uri) is configured, this value is not used.
       tokenInfoUri: ${AUTH_SERVER}/check_token
+      # Token Keys endpoint is used for offline token validation. This value must be deleted if online token validation is desired.
       jwk:
         key-set-uri: ${AUTH_SERVER}/token_keys
+# This value is used by the SSO connector and will be overwritten along with other Spring Boot OAuth2 values if bound the the SSO service.
 ssoServiceUrl: ${AUTH_SERVER}
 logging.level:
   org.springframework.security: DEBUG