Introduce and clarify new TEMPSUMMON types
[s1895] Rename to new and clear defined tempsummon types

* Rename TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT to TEMPSUMMON_TIMED_OOC_DESPAWN
* Rename TEMPSUMMON_TIMED_OR_DEAD_DESPAWN       to TEMPSUMMON_TIMED_OOC_OR_DEAD_DESPAWN
* Rename TEMPSUMMON_TIMED_OR_CORPSE_DESPAWN     to TEMPSUMMON_TIMED_OOC_OR_CORPSE_DESPAWN

You should not rename in Object.h nor in TemporarySummon.cpp
Also note that this rename will in the moment not change any behaviour; But the behaviour will then be like the name suggests!
[s1896] Fix spell 24834

Also thanks to nighoo for an (independend) alternate version that was also important for final form.
Close #63

Signed-off-by: Schmoozerd <schmoozerd@cmangos>