Added Japanese lang files

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@938509 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update version to 2.9

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@938510 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add persian lang files

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@938513 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@938515 b8457f37-d9ea-0310-8a92-e5e31aec5664