[12615] Loading/reloading classlevelstats.
Simple function to load and reload creature_template_classlevelstats table.
Also add getter.
Part 2/3 of new stats system.

Thank to @Schmoozerd.
[12616] Reorganize code to allow rage rewarded for critter type.

Fix cmangos/issues#231
[12617] Fix creature loose target while rooted.

Fix cmangos/issues#280
[12618] Remove unused constructor overloads
[12619] Fix conflicting typedef error in ACE Prevent assert on platforms where we cannot change thread priority

Fix cmangos/issues#85
[12620] Fix creature flee dont loose target. Also Feared creature will loose correctly target then target will be restored.
[12621] Hand of Reckoning can now be used to fleeing creature.

Thank to @tarwyn for pointing and @Tobschinski for his help
Fix cmangos/issues#369
[12622] Implement new stats system for Health and Mana. Core now suport health and mana from new stats system. To make it work you'll need to have DB part also wich is not yet public nor ready for wotlk. So till that DB will be released health and mana will be prossessed like as usual.

Thank to @X-Savior for making it possible.
[12623] Simplify and add comments to new stats system code.
[12624] Correctly use custom value for specified creature rank in config file. Also add check to ensure final health is at least 1.
[12625] Hotfix broken ACE configure script of [12619]

Note: This will reintroduce problems for MacOS. So a proper patch is still pending.

Reopen cmangos/issues#85
[12626] Improve "NPCs gets stuck in melee animation while casting".

Fix cmangos/issues#379
[12627] Improve  random movement by permit randomly no wait time to next waypoint

Thank to @dev-intra for this proposal.
Thank to @Schmoozerd for his improvement.
Slightly modified version of https://github.com/mangoszero/server/commit/0feaee0d5a34489a756a46d24d318bf885b23318
[12628] Fix PostgreSQL bindings and add support to build directly with PostgreSQL instead of MySQL.
[12629] Don't do periodic heal ticks if the target is already at max health.

If a target is at maximum health already periodic healing spells should
not tick.

From the healer's point of view this means far less overhealing, improving their healing performance information.
[12630] Totem are immune to their own spell workaround fix

More info on old repos -> https://github.com/mangos-one/server-old/commit/bd31a09d7cd402100bd035b0eafce92e520b693b

Fix cmangos/issues#68 (but need to be backported)
[12631] Restore nix build after [12628]

Thank to @dsavineau for pointing
[12632] Remove a compile warning and better test with float
[12633] Reorder and unify the config's stat modifier handling
[12634] Fix some unused parameter warnings