[gnome-db] more UI issues in mergeant

[Rodrigo Moya <rodrigo gnome-db org>]

Hi

All the tabs in mergeant, except the SQL window I recently added, use
buttons without icons on the bottom of the tab (see
http://www.gnome-db.org/images/screenshots/mergeant_tables.png), instead
of using a toolbar with nice icons.

So, Vivien, do you agree in letting me go over all tabs and change the
buttons-at-the-bottom with nice toolbars?

cheers