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Propose sync of sf's fixes/refactoring in mod_lua, so we can get the ball rolling on the rest of the changes.

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Backport of r1368094 from trunk.


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for mod_unixd and mod_privileges.

Backport of r1368058 from trunk.


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Backport of r1368053 from trunk.


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(miscomception ->misconception)

Backport of r1367778 from trunk.


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Add the 'thread' value to the list of possible scopes

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probably even CTR?


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and r1366693 (1365001, 1365020, 1365029).


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small and easy to review.


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        trunk patch: http://svn.apache.org/viewvc?rev=1365001&view=rev and
                          http://svn.apache.org/viewvc?rev=1365020&view=rev and
                                            http://svn.apache.org/viewvc?rev=1365029&view=rev
                                                 2.4.x patch: http://people.apache.org/~jorton/ap_proxyblock-24x-v2.diff [avoids major MMN bump]
                                                      +1: jorton, rjung, jim



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mod_proxy_balancer: Restore balancing after a failed worker has
recovered when using lbmethod_bybusyness.

PR: 48735

Markus Stoll and Adam C both submitted patches against 2.2.x
to bug 48735.  Compared with those two, this solution

1. resets the busy field in the error-ed worker at the end of
   the request instead of at recovery time
2. leaves the lbstatus field alone
3. covers all possible scenarios where the busy field in the
   error-ed worker needs to be adjusted, since a cleanup to
   perform the decrement is registered at the point of the
   increment

Submitted by: trawick
Reviewed/backported by: jim


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LUA_COMPAT_ALL should be defined _before_ including lua headers
Submitted by: humbedooh
Reviewed/backported by: jim


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during startup This should save some memory, especially with .htaccess

Backport of r1343099.

Submitted by: sf
Reviewed by: rjung, jim
Backported by: rjung


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