forwardport r1185627 okular/branches/KDE/4.5/kdegraphics/okular/ui/sidebar.cpp: make sure the list is shown all the times we show the sidecontainer
forwardport r1185628 okular/branches/KDE/4.5/kdegraphics/okular/ui/sidebar.cpp: no need to look for a new current item if the sidebar is not even shown

svn path=/trunk/KDE/kdegraphics/okular/; revision=1185629