hover-over on /geo/ should handle closely spaced stations

[jeffpc]

For example, stations 31 and 32 are at the same location but the new /geo/ hover-over doesn't realize that and therefore one of the stations (32) covers over the other (31) making it impossible to hover over station 31.

Possible solution: combine closely spaced stations into a single "hover-over region", and list multiple lines in the tool-tip identifying which sat is seen by with station in the "region".

[mahtin]

@jeffpc - agree 100% The two stations in NZ are separate enough to flip between then; but in Holland that's not the same. I will go play with some code this weekend.