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.
Update popover.js

Changed the tabs to spaces.

Changed the name of the variable from hideTPopover to hidePopover.
Merge pull request #41 from berinder/master

Added missing return this to hide() for popover
Generate compiled JS
Merge branch 'master' into gh-pages