Test basic import

>>> import mgrs

>>> latitude = 42.0
>>> longitude = -93.0

>>> m = mgrs.MGRS()
>>> c = m.toMGRS(latitude, longitude)
>>> str(c.decode("ascii"))
'15TWG0000049776'

>>> lat, lon = m.toLatLon(c)
>>> '%.6f' % lat
'41.999998'

>>> '%.6f' % lon
'-93.000000'

>>> yp = '321942N'
>>> yd = m.dmstodd(yp)
>>> '%.6f' % yd
'32.328333'


>>> y = '321942.29N'
>>> yd = m.dmstodd(y)
>>> '%.6f' % yd
'32.328414'


>>> x = '671328.35W'
>>> yd = m.dmstodd(x)
>>> '%.6f' % yd
'-67.224542'

>>> y = '321942.29S'
>>> yd = m.dmstodd(y)
>>> '%.6f' % yd
'-32.328414'

>>> d, m, s = m.ddtodms(32.328414)
>>> (d, m,'%.6f' % s)
(32.0, 19.0, '42.290400')

>>> m = mgrs.MGRS()
>>> washingtondc = (38.9072, -77.0369)
>>> c = m.toMGRS(*washingtondc)
>>> str(c.decode("ascii"))
'18SUJ2338308450'

>>> philadelphia = (39.9526, -75.1652)
>>> c = m.toMGRS(*philadelphia)
>>> str(c.decode("ascii"))
'18SVK8588822509'

