[mr2951] Fix missing talent point for quest 12752
[mr2952] Build fix for [sd2_mr0625]
[mr2953] Small naming clarification
Revert "[mr2951] Fix missing talent point for quest 12752"

This reverts commit 8ba5734d689fde04554e98268d9f97b3938d1691.
SD2 update
[mr2954] Reorganize R2 thread bucket manager v0.5.4, add templated class for possibility continue parallilize tasks (no any changes must be currently). need check compile under win. related to #1402 and some more old. - also some rework in VMSS (to be continued) - statistic passed to template (hooks)
[mr2955] Reorganize R2 thread bucket manager part 2 - add config key for skip continents in VMSS - some more verbose config description
[mr2956] lock object to grid loading. testing.
[mr2957] add virtual Update() method to MaNGOS::Singleton (requires for future work) - not must have any effect, but possible compile problems (please report).
[mr2958] remove manual locking from Calendar. Singleton locks now must works fine. testing.
[mr2959] use ClassLevel locking instead of manual in WorldStateMgr. testing.
[mr2960]  use ClassLevel locking instead of manual in AccountMgr. testing.
Merge branch 'master' into testing
Revert "move cleanup cycle for MapPersistentSate from object update to singleton update. must fix some old crushes. testing."

This reverts commit e79f2e79c45a32d84b7d0f48b0de58a822cf22f3.
move cleanup cycle for MapPersistentSate from object update to singleton update, v0.2. must fix some old crushes. testing.
use Null locking in ObjectAccessor. must give some speedup, but dangerows!. testing.