Release 1.0.3

git-svn-id: https://plugins.svn.wordpress.org/advent-calender/trunk@994306 b8457f37-d9ea-0310-8a92-e5e31aec5664
Version bump.

git-svn-id: https://plugins.svn.wordpress.org/advent-calender/trunk@994310 b8457f37-d9ea-0310-8a92-e5e31aec5664