Branch for development version 4.1.3

git-svn-id: https://plugins.svn.wordpress.org/post-teaser/branches/D4.1.3@938581 b8457f37-d9ea-0310-8a92-e5e31aec5664
More compatibility fixes.

git-svn-id: https://plugins.svn.wordpress.org/post-teaser/branches/D4.1.3@938592 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update translation file.

git-svn-id: https://plugins.svn.wordpress.org/post-teaser/branches/D4.1.3@938594 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merging from development branch 4.1.3

git-svn-id: https://plugins.svn.wordpress.org/post-teaser/trunk@938598 b8457f37-d9ea-0310-8a92-e5e31aec5664