Added syncSize() calls for pagiung toolbar - fixes #21

Added calls to syncSize to detect/update content changes and properly
size the paging toolbar, including overflows.

Also updated size of the Multifilters window to consider the browser
size and shrink itself accordingly.

Finally, added place-holder code to enable overflow in the top toolbar
down the road. This can't be done yet, however, because the quick search
box doesn't work in the overflow menu