gstlal_ll_inspiral_aggregator: tweak default settings, fix busted jobs dirs for injection jobs and fix logging statement

Remove deprecated kappa_a channels from h(t) frames and add six additional channels for non-gated kappas

gstlal_inspiral_pipe to inspiral_pipe.py

create injection-only dags. In the process of merging these two programs, a
recently-introduced bug was discovered and fixed in gstlal_inspiral_pipe that
resulted in injection files being assigned likelihood ratios computed from the
wrong background. This bug was probably introduced in commit
5cdc0e0e

lal_demodulate:  reduce error by using time since pipeline started instead of GPS time in complex exponential.

bin/gstlal_inspiral_reset_likelihood: allow zero lag to be added to background when resetting liklihood