Fix leak on shutdown in the navigation controller. The pending entry was not getting deleted.
Fix leak on shutdown in the navigation controller. The pending entry was not
getting deleted.

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@1173 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser