Correctly handle self-referential foreign keys on WITHOUT ROWID tables.
Correctly handle changing counting when inserting and deleting on
WITHOUT ROWID tables.  Add more FOREIGN KEY test cases.
Fix a problem with processing INTEGER PRIMARY KEY on a WITHOUT ROWID table.
Add another test case file for WITHOUT ROWID and fix the bugs that the new 
test file uncovered.
Bug fixes in the INSERT constraint checker.  Refactor the Rowid handling logic
for ANALYZE with STAT3/4.
Add the index7.test script for testing partial indices with WITHOUT ROWID
tables.  Fix bugs in ANALYZE located by that script.
Add the conflict2.test script.  Fix issues discovered by this script.