Change product code of Win64 installer to allow simultaneous installation on Win32 and Win64; also change product name to be able to distinguish the two in ARP.

#687648 from Robert Schuppenies: use classic division.  From me: don't use string exception; add __main__ section

#687648 from Robert Schuppenies: use classic division.  From me: don't use string exception; flush stdout after printing

#687648 from Robert Schuppenies: use classic division.  (RM Barry gave permission to update the demos.)

Issue #3846: Release GIL during calls to sqlite3_prepare. This improves concurrent access to the same database file from multiple threads/processes.

Fixes issue #3103. In the sqlite3 module, made one more function static. All renaming public symbos now have the pysqlite prefix to avoid name clashes. This at least once created problems where the same symbol name appeared somewhere in Apache and the sqlite3 module was used from mod_python.

sqlite3 module: Mark iterdump() method as "Non-standard" like all the other methods not found in DB-API.

Reviewed by Martin von Loewis.

Issue #3781: Final cleanup of warnings.catch_warnings and its usage in the test suite. Closes issue w.r.t. 2.6 (R: Brett Cannon)

larger than uint. Reverts r65975. Reviewed by Brett Cannon.

PyString_FromFormat which has an independent implementation, and uses "%zd".

This makes a difference on win64, where printf needs "%Id" to display
64bit values. For example, queue.__repr__ was incorrect.

Reviewed by Martin von Loewis.

Delete old NormalizationTest.txt if it doesn't match
unidata_version.

  Reviewed by Amaury.

Reviewed by Fredrik Lundh and Marc-Andre Lemburg.

Reviewers: Amaury, Antoine, Benjamin