Minor: Increment the screen-options helper version to 1.3

git-svn-id: https://plugins.svn.wordpress.org/broken-link-checker/trunk@968244 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix a notice about undefined index "status_text".

git-svn-id: https://plugins.svn.wordpress.org/broken-link-checker/trunk@968246 b8457f37-d9ea-0310-8a92-e5e31aec5664
Minor: Let the IDE know $instance type.

git-svn-id: https://plugins.svn.wordpress.org/broken-link-checker/trunk@968248 b8457f37-d9ea-0310-8a92-e5e31aec5664