* Added the sqlite3_wal_checkpoint_v2() interface and enhanced the
wal_checkpoint pragma to support blocking checkpoints.
* Improvements to the query planner so that it makes better estimates of plan
costs and hence does a better job of choosing the right plan, especially when
SQLITE_ENABLE_STAT2 is used.
* Fix a bug which prevented deferred foreign key constraints from being
enforced when sqlite3_finalize() was not called by one statement with a
failed foreign key constraint prior to another statement with foreign key
constraints running.
* Integer arithmetic operations that would have resulted in overflow are now
performed using floating-point instead.
* Increased the version number on the VFS object to 3 and added new methods
xSetSysCall, xGetSysCall, and xNextSysCall used for doing full-coverage
testing.
* Increase the maximum value of SQLITE_MAX_ATTACHED from 30 to 62 (though the
default value remains at 10).
* Enhancements to FTS4:
- Added the fts4aux table
- Added support for compressed FTS4 content
* Enhance the ANALYZE command to support the name of an index as its argument,
in order to analyze just that one index.
* Added the "unix-excl" built-in VFS on unix and unix-like platforms.
way to build sqlite3 according to upstream.
It should give a small performance increase due to static inlining,
but more importantly lets us avoid manual maintenance of sqlite3.h.
Bump revisions for sqlite3 and sqlite3-tcl.
