Add expander to group Replace All options for Replace dialog.
Use Replace All In Session button instead of checkbox.
Add border, update packing for all dialogs in search.c.
Add ui_dialog_vbox_new() for consistent dialog borders.


git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@914 ea778897-0a13-0410-b9d1-a72fbfd435f5