Initial/ongoing comparison of IPP to SuperMACHO/ESSENCE Photpipe reductions using GPC1 images from the 2009.01 release.

(don't forget to note the IPP svn-head revision # being used)

=== Warping (PSwarp and SWarp) ===

=== Stacking (ppStack and SWarp) ===

* ppStack(pswarps, swarps)

* swarp(swarps, pswarps)

=== Differencing (ppSub and hotpants) ===

* ppSub(pswarp-swarp:stack)

* hotpants(pswarp-ppStack, swarp-ppStack, pswarp-swarp:stack) 

=== Photometry (psphot and dophot/pixie) ===