Upgrade notes:
* Index names have changed from hardcoded 'Identica_people' and 'Identica_notices' to use the database name and actual table names. Must reindex.
New events:
* GetSearchEngine to override default search engine class selection from plugins
New scripts:
* gen_config.php generates a sphinx.conf from database configuration (with theoretical support for status_network table, but it doesn't seem to be cleanly queriable right now without knowing the db setup info for that. Needs generalized support.)
* Replaced old sphinx-indexer.sh and sphinx-cron.sh with index_update.php
Other fixes:
* sphinx.conf.sample better matches our live config, skipping unused stopword list and using a more realistic indexer memory limit
Further notes:
* Probably doesn't work right with PostgreSQL yet; Sphinx can pull from PG but the extraction queries currently look like they use some MySQL-specific functions.
Status_network can't be a subclass of Memcached_DataObject -- the
latter is too entrenched in Laconica's memc handling functions, which
aren't loaded when Status_network is running! But the importance of
caching these values can't be overstated. So, a considerably
slimmed-down version of the Memcached_DataObject code is transcribed
into Status_network.
This is the beginning of the code for status.net and related status
farms. It will read basic information about a site from a shared,
central database and use the data stored there to switch on the
hostname.
