Sync of latest code from Aaron.
Merge commit 'arp/master'
adding damo to capo import
plot_uv_mpi fixed lst calculation and made more error tolerant
this compare_nights works pretty well
adding a couple useful scripts file_date and plot_temps
added pol2ind to dcj
added --nocal option to beamform.py
copying over from arp, removed bh from window weight
copying over from arp, adding npz generation
copying over the old v03 redmult, for completeness, since I slightly changed that one too
adding npz saving to pspec_plot
copying pspec_bootstrap from arp