This patch add:
1)Prefernces dialog added: change bakcground and foreground colors, scrollback lines, tabpanel position. Also it can change settings for all tabs and terminals after "OK"
2)All tabs now is reorderable
3)Resolve some warnings (for gcc-4.3.1)
4)Make tabs header is homogeneous and dynamic sizeable(this is commented in patch because gtk_label_set_ellipsize don't work as I expected. Please, see commented lines(152, 295, 324, 549) in patch and tell me where is wrong).