Log Message:
Update sqlite to 2.8.3. Major relevant changes:

2003 June 4 (2.8.3)
      -	Fix a problem that will corrupt the indices on a table if you
	do an INSERT OR REPLACE or an UPDATE OR REPLACE on a table that
	contains an INTEGER PRIMARY KEY plus one or more indices.
      - Add the ability for INSERT and UPDATE statements to refer to
	the "rowid" (or "_rowid_" or "oid") columns.
      - Other important bug fixes

2003 May 17 (2.8.2)
      - Fix a problem that will corrupt the database file if you drop a
	table from the main database that has a TEMP index.

2003 May 16 (2.8.1)
      - Reactivated the VACUUM command that reclaims unused disk space
	in a database file.
      - Added the ATTACH and DETACH commands to allow interacting with
	multiple database files at the same time.
      - Added support for TEMP triggers and indices.
      - Added support for in-memory databases.
      - Removed the experimental sqlite_open_aux_file(). Its function
	is subsumed in the new ATTACH command.
      - The precedence order for ON CONFLICT clauses was changed so
	that ON CONFLICT clauses on BEGIN statements have a higher
	precedence than ON CONFLICT clauses on constraints.
      - Many, many bug fixes and compatibility enhancements.