Removed output buffering in favor of a filter on post and page page content.

git-svn-id: https://plugins.svn.wordpress.org/swarm-cdn/trunk@835101 b8457f37-d9ea-0310-8a92-e5e31aec5664
Bumped version to 0.3.4

git-svn-id: https://plugins.svn.wordpress.org/swarm-cdn/trunk@835102 b8457f37-d9ea-0310-8a92-e5e31aec5664