Prophy

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- prophyc: sack parser properly parses files with .h and .c extensions

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- prophyc: isar parser treats non-trivial include paths correctly

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- prophyc: python output imports by leaf filename without parent directories

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- prophy & prophyc: python 3.4 support added

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- prophyc: isar mode includes
- prophyc: sack mode warnings and errors
- prophyc: prophylang mode includes
- prophyc: prophylang constant, enumerator and struct array size expressions

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- prophyc cpp output: generated headers contain declarations of swap template functions
- prophy cpp library: single swap function template and implementation details hidden