Refactor to add a self-referential region to attach views to

Remove popover-specific code.
Cleanup code
Remove old popover code
Move all global styling to main.less
Add links to custom tooltip and popover code
Cleanup code
Add comment
Add popover and tooltip helpers
Use new popover code
Add basic working functionality for popover
Add buy link
Add onShow() method
Make onDomRefresh() a noop
Add trigger event to parent view on show
Pass the owning element to the popover
Attach trigger event to owner rather than parent view
Fix positioning for all placements
Make events unique to each view
Add support for tooltips
Add global click handler to close popovers/tooltips