Fix allocate and free_mem
#112
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This is done by allocating a dedicated buffer and copying the contents of the response into it.
This makes the allocator explicitly responsible for the memory allocated, preventing any clobbering.
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The use of
mem::forgetis extremely dangerous, as it gives no guarantee that the forgotten memory won't be clobbered. This PR fixes this making explicit use of the global allocator via theallocanddeallocfunctions.The one downside is that we explicitly copy returns from the module on every function call.
Resolves: #105