Without setting "detail-width-chars" and "detail-height-rows"

Without setting "detail-width-chars" and "detail-height-rows"
properties not only the widget has to be redrawn on certain
conditions, but also its size must be recalculated. (#339540)

* gtk/gtkcalendar.c: Add calendar_queue_refresh and call
that function instead of gtk_widget_queue_draw.

svn path=/trunk/; revision=19262