Added check_date based on note #4202033

Added ATM

Moved the original B-24 "Hot Stuff" memorial to its new place and deleted the newly created node there

Change the board type to map instead

Fixed alignment

Added the Klambratún disc golf course

Moved address point

Fixed broken width

Removed non-existing path, added one missing

Mark a building explicitly as ruins

Exchange Síminn & Hringdu

Edit Toilets.

Edit Ice cream.

Edit Car rental.

Marked unusable ways as construction since the construction area expanded across the western side of Grensásvegur

Added house no 13 and surrounding parking lots (source of house no: Staðfangaskrá)

Fixed broken ordering of routes and bus stops in route 18, added missing name to one stop

Specify whether there are cycleways

Added underground parking entrance (ref note #4342694)

Added footway (ref note #4342696), fixed various building issues, added underground parking entrance