pmPSFtry.c errors

[eugene]

pmPSFtry.c had the wrong argument order for psPolynomial1DAlloc
pmPSFtry.c pmPSFtryMetric was not using the clipped fitting

i had added an alternative algorithm for the pmPSFtryMetric function
(pmPSFtryMetric_Alt) in the prototype code, which was not included in the
release. this is the preferred version, and is called by pmPSFtryModel.

these are fixed in eam_rel9_b0

(prototype for pmPSFtryMetric_Alt is also added to pmPSFtry.h)

[robert.desonia@…]

I joined your branch in the src/objects directory.