Moved stable tag to tag 1.4.4 to split it from trunk to allow for development in trunk.

git-svn-id: https://plugins.svn.wordpress.org/google-calendar-widget/trunk@1033283 b8457f37-d9ea-0310-8a92-e5e31aec5664
Removed http from google client API url so that it should work correctly with https pages.

git-svn-id: https://plugins.svn.wordpress.org/google-calendar-widget/trunk@1033284 b8457f37-d9ea-0310-8a92-e5e31aec5664