Restore #deleted search modifier and edit_date()/create_date() filters

[Lebbeous Fogle-Weekley]

Evergreen 2.4+

#deleted modifier
-----------------

In the qp-fix and qp-fix-fix shuffle (basically a saga of heroic development affecting search internals, for those not following that particular story), a feature was lost: the #deleted search modifier that limits search results to only deleted records.

edit_date() / create_date() filters
-----------------------------------

Similarly, edit_date, create_date, and bib_source all broke for basically the same reason.

Record undeletability restored
------------------------------
If deleting records using the 'ingest.metarecord_mapping.preserve_on_delete' internal flag, you would previously encounter errors undeleting those records later. See the commit messages in the linked branch below. This was probably broken outside of the qp-fix and qp-unfix cycle.

Three commits here: http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/senator/store-deleted-search-modifier

[Lebbeous Fogle-Weekley (lebbeous)]

Just remembered all this may as well go together, and edited the bug report to cover not only #deleted, but also edit_date() and create_date()

[Lebbeous Fogle-Weekley (lebbeous)]

Updated the description of this bug again. The branch given now contains three commits fixing all the issues reported here.

[Mike Rylander (mrylander)]

Thanks much for getting this stuff back post-qp-fts-revivification, Lebbeous!