Revert https://osm.org/changeset/169350095 (entirely vandalism from hacked account)

Revert https://osm.org/changeset/169355703 (entirely vandalism from hacked account)

Revert https://osm.org/changeset/169357242 (entirely vandalism from hacked account)

Revert most of https://osm.org/changeset/169367926 (vandalism from hacked account)

Revert https://osm.org/changeset/169369792 (entirely vandalism from hacked account)

Revert most of https://osm.org/changeset/169371054 (vandalism from hacked account)

Revert most of https://osm.org/changeset/169372962 (vandalism from hacked account)

Revert https://osm.org/changeset/169373059 (entirely vandalism from hacked account)

Update some shops in 12147 Rockville Pike shopping center.

Add Carroll Indoor Sports Center in Westminster.

Players Fun Zone: Remove opening hours because they change too frequently to be practical to maintain in OSM.

Add name to Harwood Flats at Nicholson Lane & Huff Court.

Montrose Crossing (12023-12037 Rockville Pike): Add addresses; Boardroom is closed.

Edmondson Avenue & North Rosedale Street: Remove crossing tags from node that isn't on a road.

Delete portion of Fox Meadow Lane that no longer exists (see https://osm.org/changeset/168619255)

Add name to White Flint Plaza.

Add some shop addresses at White Flint Plaza.

Harris Teeter in Park Potomac: does not occupy the whole building; update opening hours

Add dog park on Preserve Parkway.

Move a waste basket near the North Farm tennis courts.