allow persistency of PS

Pass tsrmls to all functions, which might need it in the future.
We are anyway breaking the internal ABI in 5.3.2 so this won't hurt
and make us prepared for the future.

cosmetics. typedef-ed types should be in capital case

improve the stats subsystem. Reduce the number of macro definitions
in half by smartly introducing 2 new macros. Make MYSQLND::stats a pointer
from being aggregated and add triggers.

Change of way the packet objects are created/initialised
If the protocol gets changed, ever, we can decide at runtime
easily which protocol to use by instantiating the right protocol
obje

Change of way the packet objects are created/initialised
If the protocol gets changed, ever, we can decide at runtime
easily which protocol to use by instantiating the right protocol
object. But this is restricted to the structure of the packets, not
the flow.

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Move this function to MYSQLND_NET as it works on the
php stream

Move two functions which are used in the extension as methods of
the connection. Two functions less in the global namespace.

Add plugin storage for MYSQLND_STMT too

Remove the zval caching from mysqlnd. It was disabled versions ago
due to problems on windows, which were not debugged. Better have
code that is disabled not in the core.

Remove disabled code - threaded fetching. This can be implemented
on a upper level and by offloading it we reduce the complexity of
the core.

fix debug windows build as well as remove a compilation warning
(a header not included)

Compressed protocol support + extensibility for mysqlnd

Count number of affected_rows for normal and PS queries

Fix ZTS build

Use mnd_ wrappers wherever possible. Needed for
statistics.

Revert mysqlnd to RC3 state after issues with pconnects

MFH: C-comments

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 for the failing mysql_stmt_execute() test. Data was cleaned after
stmt_reset() but it should stay and be freed as later as next stmt_execute()

MFH:Fix a valgrind warning as well as more trace log information

MFH:Fix a problem with cursors, which did not happen with unbuffered PS for
some reason. Double free of the data, which led to valgrind warnigns.
The fix actually optimizes the code in this c

MFH:Fix a problem with cursors, which did not happen with unbuffered PS for
some reason. Double free of the data, which led to valgrind warnigns.
The fix actually optimizes the code in this cases because the old code
used copy_ctor while the new one skips it because it is not needed.
Transferring data ownership and nulling works best, for PS where we
always copy the string from the result set, unlike the text protocol.

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- MFH: Improve mysqlnd's internal method registration

MFH: Bump copyright year, 3 of 3.

MFH:
Windows fixes for mysqlnd
Less warnings + PHPAPI for mysqlnd_poll

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