[mr2831] Fix EventAI ACTION_T_FORCE_DESPAWN

if script in EventAI have ForceDespawn with 0 value, and have some other action, other action don't work because creature despawned at once. example - quest 13666
[mr2832] Fix pet moving after owner's COMMAND_STAY
[mr2833] Update recast/detour to revision 351

Also removed RecastDemo, any way not used. If you need demo, download it by himself from http://code.google.com/p/recastnavigation/
[mr2834] Tune Recast & Detour

Based on CMaNGOS (author Cyberium) and TC (author kaelima)
[mr2835] Update MMap Builder for new Detour navmesh generation (settings and code style)
[mr2836] Tune MMapBuilder for more realistic path generation
[mr2837] Update VMap extractor
[mr2838] Update Extractor
[mr2839] Update VMAP and MMAP versions
[mr2840] Some improvements
[mr2841] Use new Detour return value format and some code style
[mr2842] Add ".mmap path go" chat command and rename "true" option to more exp…
…licit "straight".

Author Cyberium
[mr2843] Fix Prayer of Mending (spell 33076) "jumps", close #1364
[12522] Add database changes to support more data for DB Script texts
[12523] Add const-correctness to Text related functions
[12524] Add generic DoDisplayText function and use additional data of dbscripts table

Signed-off-by: Schmoozerd <schmoozerd@cmangos.net>
[12525] EventAI: Use generic DoDisplayText and loading of additional text data

Conflicts:
	src/game/CreatureEventAI.cpp
	src/game/CreatureEventAIMgr.cpp
[12526] Store how many texts are loaded for validity checks. Use this with EventAI

Close cmangos/issues#202 and close cmangos/mangos-wotlk#118
Fix some warnings
[12528] Hotfix to recent text loading functions

Conflicts:
	src/shared/revision_nr.h