Make reviewer pages testable on test servers.

war/src/main/resources/application-branch.properties

@@ -7,10 +7,10 @@ profile=DEV
 # No secrets available for branch deployment to branch.dsv.su.se
 # Will have to set up some mock API for this later
 service.grading.url=
-oauth.uri=
-oauth.clientId=
-oauth.clientSecret=
-oauth.redirectUri=
+oauth.uri=${OAUTH2_AUTHORIZATION_URI:http://localhost:59734/authorize}
+oauth.clientId=${OAUTH2_CLIENT_ID:scipro}
+oauth.clientSecret=${OAUTH2_CLIENT_SECRET:s3cr3t}
+oauth.redirectUri={baseUrl}/oauth/callback
 
 # No secrets available for branch deployment to branch.dsv.su.se
 # Will have to set up some mock API for this later