Add whitespace, merge image.js into admin.js

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@888400 b8457f37-d9ea-0310-8a92-e5e31aec5664
Remove redundant image

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@888403 b8457f37-d9ea-0310-8a92-e5e31aec5664