[mr3130] Prevent create a new characters with wrong race and class pair.
+ small improvements.

Get rid of not load, "broken" chars, and Guid's economy.
[mr3131] Swap grid when object move to new grid cell. Now core can remove transport object from old map grid and this prevents double update object with two map. also may be fix grid memleak.
[mr3132] Fix one warning.
[mr3133] Fix one crash.
[mr3134] Remove inline calculate chase movement. Cause decrease lag.

Some times spells, scripts, etc, summon many creature in one tick.
So some times scripts set creatures target in one tick.
Those cause broken visitor splitter system.
Is better move calcuates to next tick if can. (Now can split)
[mr3135] Implement RFC commands.
Merge branch 'master' of git://github.com/mangosR2/mangos into testing