By the way, to make the cursor turn into a pointer when hovering over the calendar icon, I just added this simple CSS in (types/embedded/resources/css/fields-post.css) at line 8 where is says:
img.ui-datepicker-trigger { margin-left: 5px; }
So, I just added:
img.ui-datepicker-trigger { margin-left: 5px; cursor: pointer; }
You can include this fix. Still waiting for response regarding the other issue –> year selection.