- Don't follow mainline on use of UNINIT_VAR yet, we haven't merged it in.

- Post-merge fixes

* Finished Monty and Jani's merge
* Some InnoDB tests still fail (because it's old xtradb code run against
  newer testsuite). They are expected to go after mergning with the latest
  xtradb.

 - Add conditionals for bundled zlib and innodb plugin.
 - Apply patch from bug#46834 to install the test suite in RPMs.
 - Add plugins to RPMs.  Disable example plugins.

This is a partial correction to the original fix for bug#37098
   Get rid of "Installed (but unpackaged)" files in the RPM build
which used a wrong variable.

man/Makefile.am:
  Correction to the original fix:
  The variable to use is "$(mandir)", "$(manlibdir)" was wrong.

This involves merge changesets and backports into QSP builds only,
does not cause a contents change in 5.1

not ready to run with innoplug-1.0.4.

automerge didn't handle this correctly,
so test "view" was corrected manually.

The test for the 45806 entry in our bug DB got applied twice,
in different places for the "view.test" and "view.result" files.

The fix is to simply remove the erroneous insertion.

widely used, in replication (delete_allow_opened) and for named
pipe support. We do not support Win9x anymore.

The problem is that the lexer could inadvertently skip over the
end of a query being parsed if it encountered a malformed multibyte
character. A specially crated query string could cause the lexer
to jump up to six bytes past the end of the query buffer. Another
problem was that the laxer could use unfiltered user input as
a signed array index for the parser maps (having upper and lower
bounds 0 and 256 respectively).

The solution is to ensure that the lexer only skips over well-formed
multibyte characters and that the index value of the parser maps
is always a unsigned value.

mysql-test/r/ctype_recoding.result:
  Update test case result: ending backtick is not skipped over anymore.
sql/sql_lex.cc:
  Characters being analyzed must be unsigned as they can be
  used as indexes for the parser maps. Only skip over if the
  string is a valid multi-byte sequence.
tests/mysql_client_test.c:
  Add test case for Bug#45010

Problem 1:
When the 'Using index' optimization is used, the optimizer may still - after
cost-based optimization - decide to use another index in order to avoid using
a temporary table. But when this happens, the flag to the storage engine to 
read index only (not table) was still set. Fixed by resetting the flag in the 
storage engine and TABLE structure in the above scenario, unless the new index
allows for the same optimization.
Problem 2:
When a 'ref' access method was employed by cost-based optimizer, (when the column
is non-NULLable), it was assumed that it needed no initialization if 'quick' access
methods (since they are based on range scan). When ORDER BY optimization overrides 
the decision, however, it expects to have this initialized and hence crashes. 
Fixed in 5.1 (was fixed in 6.0 already) by initializing 'quick' even when there's 
'ref' access. 

mysql-test/r/order_by.result:
  Bug#46454: Test result.
mysql-test/t/order_by.test:
  Bug#46454: Test case.
sql/sql_select.cc:
  Bug#46454: 
  Problem 1 fixed in make_join_select()
  Problem 2 fixed in test_if_skip_sort_order()
sql/table.h:
  Bug#46454: Added comment to field.

- Remove offensive quotes.