add a much nicer toolbar drag-n-drop function. now it locks to the mouse and only lets you move the applet left and right.
side effect: as it is now it is a click-to-drag thing so a single click starts the drag.

note: this is all one commit because git-svn wet its pants and i had to do things manually.
also note: one bug left is the remove applet button is no longer transparent, can't figure out how to make a QToolButton have a transparent background. tips welcome.

this commit is brought to you by the sun, sand, and loving warmth of jamaica and camp kde 2009.