website: update for new 0.18.1 release
bump version number after new release
draw-tools plugin: new feature - snap points to portals
useful to fix badly placed lines/polygons
[draw-tools] Fire native drawtools events in import/reset/snap; smaller bugfixes
[sync] bugfix (file wasn't created if not found)

also, set sync delay to 5 seconds
fix debug log: it's getEntities now, not getThinnedEntities
neutral portal colour: change to a slightly redder orange - so that anomaly portals with cluster markers in orange don't get quite so lost. it's not so red that the red cluster portals become an issue
update tiles-per-edge to match change to stock site
fix gamescore loading - minor data format change
Revert "[draw-tools] Fire native drawtools events in import/reset/snap; smaller bugfixes"

This reverts commit 1f8f5360406e1b2b0597915357096f968ed5fc0c.
draw-tools: create clones of latlng objects - otherwise drawn items end up with copies of thise form portals, which editing can cause the portal merkers to move!