- replace built-in algebraic model with the actual trigger distribution
  from all of O2, marginalized across the entire bank

- these are being used temporarily for debugging the online pipeline;  this patch is my current state so Chad can pick it up and see if he can make progress

- by finishing the construction of the dataless ranking statistic
- this makes gstlal_inspiral_fake_diststats obsolete, so it is deleted

- forgot I was symlinking into the source tree, and accidentally pushed my local changes to this file along with the ranking statistic code changes.  this reverts the file to the previous version

- switch numerator and denominator PDFs to a rate.BinnedLnPDF + snglcoinc.LnLRDensity() -based implementation
- add trigger rate tracking feature to denominator, taking advantage of new high-speed coincidence rate machinery in snglcoinc
- add signal rate tracking feature to numerator, taking advantage of pre-computed P(instruments) factors in SNR PDF look-up table
- switch ranking statistic distribution to a rate.BinnedLnPDF -based implementation
- remove search_summary tables, attach all livetime tracking to the trigger rate data in the denominator object

this is a work in progress.  some notable features that are still missing:

- --min-log-L cut based candidate rate reduction feature in gstlal_inspiral is disabled
- online mode for gstlal_inspiral is non-functional