Adds new API support within search engines for optional methods to
delete data for courses and contexts, and implements this for the
two core search plugins (simpledb and solr).
The new API is automatically called when courses or contexts are
deleted. When a whole course is deleted, it only sends the course
delete rather than sending 1,000 separate context deletions as
each activity/block is deleted.
- Clumsy fallback only when there is no full-text search support
- Mimic solr tests
- pgsql tokenization using simple configuration
- workaround for mysql '*' search issue
- total results proper calculation
- SQL server FTS support
- Standarize dml full-text search checkings
- Upgrade note about the new dml method
- Set search_simpledb as default engine if no solr config
sam marshall