Remove easing parameter when effect is set to fade

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@877914 b8457f37-d9ea-0310-8a92-e5e31aec5664
Increment version number

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@877915 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@877917 b8457f37-d9ea-0310-8a92-e5e31aec5664