- tests/check_calibration:  Caitlin Rose's Automated testing scripts and Makefiles for doing calibration tests.
- gstlal_compute_strain:  Don't demodulate the pcal channel again to compute SRC detuning if re-using the ~30 Hz pcal line
- lal_transferfunction:  1. Bug fixes for median of transfer functions.  2. Option to compute first transfer function asap at start of stream.  3. Use GPS time to decide when to update transfer functions so that output becomes independent of start time asap.
- tests/check_calibration:  Added plotting script and Makefile example for plotting time series of \DeltaL / pcal at calibration line frequencies.
- config_files:  Example config file for offline calibration with noise subtraction.

gstlal_compute_strain:  A couple small fixes so that it runs on shared memory after all the recent upgrades.

lal_transferfunction:  Added ability to notch out selected frequencies to avoid effects of loud lines in h(t) that are not in witnesses.

gstlal_compute_strain:  Wait for good h(t) before computing transfer functions between it and witness channels

gstlal_compute_strain:  added ability to process witness channels separately for noise subtraction, if desired.

 - bug fixes in lal_adaptivefirfilt
 - Implemented lal_adaptivefirfilt to correct for f_s and Q time-dependence
 - Added options to correct for complex kappas
 - Added EPICS bits to calib state vector

gstlal_compute_strain:  Modified smoothing of f_s and Q to produce better results. Began updating CALIB_STATE_VECTOR for O3.

lal_lpfilter:  new element that takes complex input representing amplitude and phase error of a signal at a particular frequency and computes a linear-phase FIR filter to correct this error.

gstlal_compute_strain:  Use creal instead of splitting into real and imaginary parts and fakesinking (saves computational cost)

gstlal_compute_strain:  Added calibration line subtraction back in. There's also now a prototype function for subtraction of 60 Hz lines and harmonics, and for noise subtractions using witness channels.

- new package cmath: elements that perform unary operations and handle complex and real floating point arithmetic. Elements included are cabs, cexp, cln, clog, clog10, and cpow.
- new element lal_trackfrequency: base transform element that attempts to measure the loudest frequency in a signal.

- lal_smoothkappas: added filter latency option.
- lal_resample: simpler treatment of gaps. The complicated nonsense from before was unnecessary and messed things up.
- calibration_parts.py: function to remove lines and harmonics with a witness channel now works well.

- lal_complexfirbank:  Now handles latencies longer than filter length.
- lal_insertgap:  Compute offset when throwing away initial data as offset relative to the time when streaming started.
- calibration_parts.py:  remove_lines_with_witness should work now.

lal_transferfunction:  Made fir filter length independent of fft length. Added ability to resample and low-pass filter transfer functions to produce fir filters. Reduces noise in transfer functions wieh multiple witness channels are equally well correlated with the signal to be cleaned.

lal_transferfunction:  allow any length of fir filters by resampling the transfer functions. Reduce noise by low-pass filtering transfer functions.

lal_resample:  found downsampling bug that counts samples incorrectly when the first timestanp is not a multiple of the longer sampling period

lal_transferfunction:  numerous fixes to fir filter generation.  calibration_parts.py:  data cleaning function

gstlal_compute_strain:  in offline mode, apply timestamp shift to the kappas to compute them in time for lock stretches

gstlal_compute_strain:  When applying f_cc updates to hoft, require good f_cc values for hoft ok. Also, require all kappas to be good values for duration of smoothing filters for hoft ok.