utm-to-lan-lon seems to assume northern hemisphere

[Yehouda]

The last utm-test-case in the test has negative latitude, and it fails for me (output below).
Using http://www.rcn.montana.edu/Resources/Converter.aspx (zone always 52):

lat/lon -29.343/130.803 => East/North 675044 / 6752662 southern hemisphere.
East/North 675044 / 6752662 southern hemisphere => lat/lon -29.343/130.803
East/North 675044 / 6752662 northern hemisphere => lat/lon 60.870/ 132.224

Calling utm:utm-to-lan-lon with East/North 675044 / 6752662 returns lat/lon 60.870/ 132.224,
i.e. the northern hemisphere values. So it somehow needs to know about the southern hemisphere.

-------------------------------------------------------- running the test:

CL-USER 78 > (5am::run! 'UTM:UTM-TO-LAT-LON)

Running test UTM-TO-LAT-LON ........ff
Did 10 checks.
Pass: 8 (80%)
Skip: 0 ( 0%)
Fail: 2 (20%)
Failure Details:

UTM-TO-LAT-LON []:
Could not convert { latitude: -29.3438753994D0, longitude: 130.8032226563D0, ellipsoid: GRS80, zone: 52 easting: 675064.43D0, northing: 6752564.671D0 } to latitude/longitude... got latitude 60.86957322749897D0.

---

UTM-TO-LAT-LON []:
Could not convert { latitude: -29.3438753994D0, longitude: 130.8032226563D0, ellipsoid: GRS80, zone: 52 easting: 675064.43D0, northing: 6752564.671D0 } to latitude/longitude... got longitude 132.2244754471396D0.