* e-shell-view.c (remove_uri_from_history): New helper function to
remove all the matching URIs from the history.
(history_uri_matching_func): Compare function for using
e_history_remove_matching.
(storage_set_removed_folder_callback): Call
`remove_uri_from_history()'.
* e-history.c (e_history_remove_matching): New.
svn path=/trunk/; revision=15803
* e-shell-view.c: New member `history' in `EShellViewPrivate'.
(init): Initialize.
(destroy): Unref.
(e_shell_view_display_uri): Make it a no-op if the URI is the same
as the current one. Also, moved code into `display_uri' and use
it.
(back_clicked_callback): New, callback for the back button on the
folder title bar.
(forward_clicked_callback): Likewise for the forward button.
* e-history.c: New.
* e-history.h: New.
svn path=/trunk/; revision=15798
