reserved identifier violation

[Markus Elfring]

I would like to point out that identifiers like “MESH__GLOBAL_HEAP_H” and “_MWC_H_” do eventually not fit to the expected naming convention of the C++ language standard.
Would you like to adjust your selection for unique names?

[Markus Elfring]

Thanks for your adjustment of affected include guards.

Were any update candidates left over?