Stupid mistake in TGCocoa::DispatchClientMessage: as a result of message handling (window->HandleEvent call), the window can  be deleted and message for this window will be removed, but DispatchClientMessage after calling HandleEvent still tries to remove event from the set and crashes on invalid iterator.
Stupid mistake in TGCocoa::DispatchClientMessage: as a result of message handling (window->HandleEvent call), the window can 
be deleted and message for this window will be removed, but DispatchClientMessage after calling HandleEvent still tries to remove event
from the set and crashes on invalid iterator.


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@43983 27541ba8-7e3a-0410-8455-c3a389f83636

bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical