Airport labels collide with City labels

[NelsonMinar]

The layer containing airport labels is overwritten by the layer containing city labels. See for instance
http://www.somebits.com/multimap/map.html#10.00/37.2992/-121.9487
http://img.skitch.com/20111220-cm16jw4sfpnd61xi4n5i7nywni.jpg

At z=10, "San Jose" writes on top of "SJC".

[migurski]

You're right; this is an artifact of how I've organized the stylesheets into low- and high-zoom sheets. I will merge the two to remove the overlap, though it will have the effect of making the conflicting airports disappear.