Refactoring so that PMM does not need to be codegen'ed #65
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PersistentMemoryMalloc does not need to be codegen'ed any longer. This makes debugging significantly more tractable. Log page size is now set as a constant (32MB), because making it readonly (allowing user to provide it as a log setting) results in a 5% performance penalty. When PMM was codegen'ed, we were able to replace the constant in generated code - this is no longer possible. This checkin also marks a step in the direction of having a non-codegen version of FASTER.