gstlal_compute_strain:  stricter gating in exact TDCFs solution, and changes to allowed variances in fs and Q.

gstlal_compute_strain:  bug fix in application of time delays in PUM and UIM.  Also new plotting script act2darm_timeseries.py

gstlal-calibration:  New element lal_stdev, to compute standard deviation.  Not sure if it works yet, but it builds

gstlal_compute_strain:  Compute uncertainty in the TDCFs.  It runs, but no guarantee that the output is correct yet.

gstlal-calibration/tests/check_calibration/Makefile:  git did something wierd to Makefile.  Hopefully this fixed it.

lal_adaptivefirfilt:  fixed issue with using static filter when model is not available.  Also numerous plotting script updates.

This reverts commit fc02e413fb875694df60109457817b5b5e2c5398, reversing
changes made to 66c256637d4966b5874e43cfa87330a8a48983eb.

gstlal_firtools.c:  store dpss windows as static variables inside of the dpss() function to save computation when an application uses numerous identical windows