jsPanel v4.0.0-beta.5

• new events jspaneldragstart, jspaneldrag, jspaneldragstop, jspanelresizestart, jspanelresize, jspanelresizestop
• new extension dock extending a jsPanel with the method .dock(). This method allows to dock one or more slave panels to a master panel. Basically that means a slave panel is dragged, maximized, normalized, minimized, closed and optionally resized together with the master panel it's docked to.
• bugfix in option dragit
• bugfix in extension layout
• bugfix in jspanel.css
• bugfix in CSS for Right-To-Left panels
• removed CSS border-radius settings from themes