* Rewrote plugin core
* Added better error checking
* Moved to 15.01 plugin structure
* Made plugin OOP
* added support for RAND, ASC, DESC sorting
* Tested for WordPress 4.1

git-svn-id: https://plugins.svn.wordpress.org/easy-similar-posts/trunk@1053081 b8457f37-d9ea-0310-8a92-e5e31aec5664