Added new RandomPolc error generator to Siamese, which also dumps the numbers
to the output.

Fixed old $[step} template in Pyxides/stefcal.py, now ${STEP} as it ought to be.
test commit
Adding polynomial error option
Merge branch 'devel' of github.com:ska-sa/meqtrees-cattery into devel
Small fixes to stefcal, added option to change solution order.

Updated Meow to use selectable lwimagers, and updated test scripts to use lwimager1.2.

Changed sign of PA in the circular case in feed_angle.
Merge branch 'devel' of github.com:ska-sa/meqtrees-cattery into devel
Merge pull request #3 from ska-sa/devel

Various small fixes to the Cattery, should pass the automated tests now.