Matreshka v1.4.0

• Default binder for output tag
• visibility binder is renamed to display to avoid confusion with visibility CSS property (older name still works)
• afterrender event which is fired after zero timeout when DOM node is rendered
• itemRenderer set allows to use forceRerender: false flag
• trigger method allows to fire real DOM events (eg "click::x(.selector)")
• Opera 11.6+ and Firefox 8+ support
• pull method is optimized
• Fixed DOM event removal issue using off method
• Closed #19
• Fixed bug in dataset binder for Internet Explorer
• All binders are tested
• Other minor fixes