[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
[ai-0.32-9] show random bot class and race distributions in 'rndbot stats'
[ai-0.32-10] better random bot race/class randomization
[ai-0.32-11] LFG enhancements
[ai-0.32-12] adjust 'often' trigger
[ai-0.32-13] TellMaster cleanup
[ai-0.33-2] do not reply with zero-price items in 'who' command
[ai-0.33-3] random bots have too much money
[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