[Jennie, Elenna, Oli, Keita, MattT, Jenne]

One of our locklosses this afternoon happens to have been while the OMC DCPD whitening was switching (reason is under separate investigation).  It happens that the gains we use for these now are the A0 and B0 gains, in filter banks on the IOPOMC0 model, not the OMC model.  The IOPOMC0 model is not part of the SDF revert process (probably because we never thought to add it in?).  This means that upon relock, the OMC guardian was confused when it was asked to do the SET_WHITENING state and it found that the gains were 0 or 2, not 1 and 1.  

The OMC guardian's DOWN state had an old comment (from before the omc0 days) where we explicitly set DCPD_A_GAIN and DCPD_B_GAIN both to 1, in case we lose lock during a whitening switch. For now (and in case we decide we don't want to add IOPOMC0 to the sdf revert list) I've added lines to also set DCPD_A0_GAIN and DCPD_B0_GAIN both to 1.  Hopefully we won't get stuck on this small little piece again, and can get back to figuring out our bigger locking issues.