Added missing return this to hide() for popover
Added missing return this to hide() for popover

Also fixed a bug where the hidefunction for Tooltip was used instead of
the one for popover.

mpnkhan/bootstrap-accessibility-plugin,Pistil-Studio/bootstrap-accessibility-plugin,Pistil-Studio/bootstrap-accessibility-plugin,Pistil-Studio/bootstrap-accessibility-plugin,entelesis/bootstrap-accessibility-plugin,entelesis/bootstrap-accessibility-plugin,initaldk/bootstrap-accessibility-plugin,entelesis/bootstrap-accessibility-plugin,paypal/bootstrap-accessibility-plugin,DuaneOBrien/bootstrap-accessibility-plugin,initaldk/bootstrap-accessibility-plugin,paypal/bootstrap-accessibility-plugin,paypal/bootstrap-accessibility-plugin,mpnkhan/bootstrap-accessibility-plugin,initaldk/bootstrap-accessibility-plugin,DuaneOBrien/bootstrap-accessibility-plugin,mpnkhan/bootstrap-accessibility-plugin,paypal/bootstrap-accessibility-plugin,paypal/bootstrap-accessibility-plugin,DuaneOBrien/bootstrap-accessibility-plugin