0.3.5.4b

- Fixed a bug that affected W3C HTML5 compliance.  Now compliant.
- Fixed description in documentation to better describe the plugin with WordPress
- General code tidy up


git-svn-id: https://plugins.svn.wordpress.org/masonry-post-gallery/trunk@1020793 b8457f37-d9ea-0310-8a92-e5e31aec5664