Bug 937012 - Replace the busted find_vanilla_new_calls script with the much better check_vanilla_allocations.py.  r=evilpie,gps.

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extra : rebase_source : 08f0cf236a1f4269685f38b510e26f76cbf56972
Bug 939385 (part 5) - Test vsizeMaxContiguous.  r=froydnj.

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extra : rebase_source : cca51f0c5c3283d45c6f6c1d0e2ae9ae5f16f983