Revert mysqlnd to RC3 state after issues with pconnects

MFH:
Hardwire function call instead of using callbacks. We don't actually need
callbacks, it was done for making 2 functions static, not to pollute the
global functions space but that had

MFH:
Hardwire function call instead of using callbacks. We don't actually need
callbacks, it was done for making 2 functions static, not to pollute the
global functions space but that had its price of 8 bytes overheat per
allocation, which is just too much. Also making the app member 32b instead
of 64b, which should save additional 4 byte, to the total of 12 byte per
allocation of a row buffer.

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MFH:
Fix crash when tracing is enabled. Position after buffer was used also
direct usage of MYSQLND_STRING pointer instead of the "s" property of the
structure.

Put these in an ifdef because they are not used at all if the zval cache
is off.

- silent warning and make it less ambiguous

MFH:
Check the pointer before calling a function on it, or we will crash.
This is a very rare situation where the server is totally broken.

Sync with PHP6 - TSRMLS_FETCH
Extract reference decrement in own function
Remove PHPAPI of a function and make it static as it is not called
externally

Merge with HEAD. Someone committed changes to HEAD and did not merge back to
the branch.
Also switch off the zval cache, for now.

MFH: Bump copyright year, 3 of 3.

MFB: More Windows types cleanup

MFH:
Get rid of many defines (which simplifies the code a lot),
as well as uint->unsigned int

MFB:
64bit fixes:
- fixes to sprintf modifiers, cleaning warnings
- use _t types, like uint64_t instead of uint64, thus skipping series of
typedefs.

MFH:
Fix a crash introduced yesterday in mysqlnd, non-zts mode - missing if () for
STAT_LAST was accessing wrong memory thus overwritting method pointers.

Windows doesn't have atoll(

MFH:
Fix a crash introduced yesterday in mysqlnd, non-zts mode - missing if () for
STAT_LAST was accessing wrong memory thus overwritting method pointers.

Windows doesn't have atoll(), which is C99, C89 has only atoi() + atol().
Win has _atoi64, so use it.

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MFH:
Add float conversions too. Float users should understand how float works!!!

MFH:Compile-in a string-to-int conversion for INT columns by default,
controlled by a ini setting.

MFH:
- More statistics
- Fixed endless loop - mysqlnd_stmt_next_result() returned FAIL but as it
is defined to be 1 (and PASS is 0), checking for mysqlnd_stmt_more_result()
was su

MFH:
- More statistics
- Fixed endless loop - mysqlnd_stmt_next_result() returned FAIL but as it
is defined to be 1 (and PASS is 0), checking for mysqlnd_stmt_more_result()
was successful although we were expecting a FAIL.

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More debugging info for the trace log

Sync with bzr

Update ext/mysql's and ext/mysqli's tests
Add mysqli_stmt_more_result()/mysqli_stmt_next_result(), but only in
mysqlnd builds as libmysql doesn't support this feature.

MFB: Update CVS from the development tree

MFH: fix win32 build

Fix memory leak

Fix memory errors<

Update mysqlnd - fix bg_store

some config.w32 fixes
moved mysqlnd's block allocator to a separate file and also now
it's part of the connection, no MT problems.