Fixes market to have popover-placement="top'

Market fixed to have popover-placement="top' instead of 'left', which
was causing some problems, and 'right' for consistency.
bugfix: all-market-poptop breaks on the left side

Right side popovers have been switched to 'top', but left side popovers
need to remain 'right'.
Merge pull request #4287 from taldin/market-poptop

Market poptop fix