Add "WidgetToolbars" class extension to "Popover"
Add aui-tooltip module
Add aui-tooltip demos
Yogi alloy regenerate
Improve YUIDoc markup for aui-event
Review @uses and @extends
Review the rest of @uses and @extends
Add A. prefix before class names
Yogi alloy regenerate
Documentation
Merge branch '2.0.x' into 2.0.x-deprecated

Conflicts:
	src/aui-base/js/aui-aliases.js
	src/aui-base/js/aui-loader.js
	src/aui-base/js/aui-loader.json