Setup make files, CI and etc

[easz]

• to run CI with test automatically
• to build and test on different platform

[easz]

Travis, AppVeyor, coveralls...

[nshcat]

What do you think about including support for CMake? I could submit a pull request for it if you want.

[easz]

oh yes! I would also prefer cmake (and ctest for unit test?).
at least two macro NDEBUG and USE_PEGTL I would also take into consideration.