Fixed Settings link in plugins page

git-svn-id: https://plugins.svn.wordpress.org/smooth-scroll-up/trunk@996588 b8457f37-d9ea-0310-8a92-e5e31aec5664
Compatibility with WordPress 4.1

git-svn-id: https://plugins.svn.wordpress.org/smooth-scroll-up/trunk@996590 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added Turkish language

git-svn-id: https://plugins.svn.wordpress.org/smooth-scroll-up/trunk@996592 b8457f37-d9ea-0310-8a92-e5e31aec5664