dagparts.py: add cache_to_instruments(), used in group_T050017_filename_from_T050017_files() to fix bug repeating same ifo when used repeatedly

gstlal_compute_strain:  Now allows the updating of line frequencies in the general line subtraction code.

gstlal_ll_inspiral_pipe: fix repeated option in gstlal_ll_dq jobs causing issues when auth/https is disabled

move table formatting upstream of gstlal_inspiral_summary_page to gstlal_inspiral_plotsummary so gviz_api.py not needed

- wasn't doing what was intended.

remove dataserver and most of vis from gstlal-ugly/share, remove gviz_api.py from gstlal-ugly/python

replace gstlal_inspiral_summary_page and gstlal_inspiral_summary_page_lite with implementations from scald.report

Use private fields in pkgconfig files

See merge request lscsoft/gstlal!8

configure.ac, ax_check_zlib.m4: updating autotools to add flags for zlib. these were removed upstream from lalsupport.