PATCH: Custom toolbars

["M . Thielker" <balsa t-data com>]

Hi,

 this one actually took 2 days...... :)

This patch adds custom toolbars to balsa. It's quite easy to add toolbars to
windows, so I'll probably give one to the message read window (I miss
delete, read next, read prev, next unread, print etc.) in a toolbar there.

With this, it's a cinch to add customizable toolbars to almost any window.

A new property box in prefs allows moving, removing and adding buttons in
toolbars.

Melanie

balsa-custombars.patch.gz