Version 0.8

git-svn-id: https://plugins.svn.wordpress.org/json-rest-api/trunk@821863 b8457f37-d9ea-0310-8a92-e5e31aec5664
Bump readme to 0.8

git-svn-id: https://plugins.svn.wordpress.org/json-rest-api/trunk@821864 b8457f37-d9ea-0310-8a92-e5e31aec5664