We need to change several scripts for use with the new ALS-in-the-LSC paradigm:

* Watch arms (to turn off ALS if we lose the beatnote, before pushing optics too hard)

* Find IR resonance

* Offset from resonance

None of these should be difficult, just changing the filter bank names to match the new ones (ex. LSC-XARM rather than ALS-XARM, and LSC-ALSX rather than ALS-OFFSETTER1). 

So far, I have changed the "find resonance" script (ALSfindIRresonance.py).  I believe, in principle, to first order, that my modifications should work, however I have not yet tested the script.  So.  If you use it, watch the output of the script and ensure it's doing what it ought.  I'll check it after the lunch meeting and update this log entry.  (I changed the name of the "OFSFILT" variable, line 26, and also modified line 114.  Both of those lines have comments on how to revert the changes).

I have also changed the "offset from resonance" script (ALSchangeOffset.py).  Again, since I'm not locking right now, I have not tested this script either.  So, pay attention if you need to use it, before I check it.  (I changed the name of the OFSFILT variable, and the check which arm logic around line 37.  Again, both of those lines have comments on how to revert the changes.)