xspec patches 12.7.0i,j,k

12.7.0i	This fixes an obscure case where erroneous usage of "?" for command summary display is causing a crash. Our thanks to Sebastien Guillot for pointing this out. Report added on Sep 07, 2011.
12.7.0j	Fix needed to allow gain fit parameters to be used along with custom energy arrays supplied by the energies command. (This includes the energies extend option.) Our thanks to Dominic Walton for pointing this out. Report added on Sep 07, 2011.
12.7.0k	For PyXspec only. This improves the output of the Model.folded() class method for the case where there are ignored channels. Previously, bins in the folded model array were set to zero when they corresponded to ignored channels. Now they are removed from the array altogether. This ensures that the length of the folded model array always matches the number of noticed channels. Our thanks to Nakisa Nooraee for pointing this out. Report added on Sep 08, 2011.

Two PyXspec patches

12.7.0g	Minor fix for when retrieving plot arrays (using tclout plot in standard XSPEC, or Plot.x() and Plot.y() in PyXspec). This removes the trailing zeros that padded the arrays when plot points were removed with the ignore or setplot rebin commands. Our thanks to Alexander Gewering-Peine for pointing this out. Report added on Aug 12, 2011.
12.7.0h	Fix for PyXspec only. Earlier patch 12.7.0f introduced a bug which occurs when a non-norm parameter is modified and set to a parameter link. In this case it does not perform the necessary automatic model recalculation. Our thanks to Adam Mantz for pointing this out. Report added on Aug 25, 2011.