[daip] UVFIT, UVMOD bugs (31DEC07)

[Michael Bietenholz]

UVFIT and UVMOD (31DEC07; MNJ today) both seem to limit GPOS to be >
-1.  That makes no sense, since their positions are wrt. the phase
center, so arbitrary -ive positions should be allowed.
(Affects SDMOD and likely others as well)


               cheers,               michael b