In the ANALYZE command implementation make statInit() a 2-value function
since the 3rd parameter was always the same constant.
Update sqlite3.pc.in to use @PACKAGE_VERSION@ instead of @RELEASE@.
Reduce the amount of code run and memory used for ANALYZE in the common case
where neither STAT3 and STAT4 are enabled.
Adjust ANALYZE for improved test coverage.  Use the SQLITE_ENABLE_STAT3_OR_STAT4
macro (created in sqliteInt.h) to conditionally include code, instead of 
a boolean specifying both macros separately.