Preprocessor macros in Ctor initializer list.

[Gugli]

Skip the preprocessor tokens when parsing initializer lists instead of crashing.
Reworks the parsing loop with a single call to self._get_next_token() instead of self.get_name(), in order to detect preprocessor tokens.

[myint]

Thanks! It looks like a test is failing:

https://travis-ci.org/myint/cppclean/builds/378788611?utm_source=github_status&utm_medium=notification

[Gugli]

Sorry I've been busy, and I have not had time to look into it.
Don't worry about it for now. I'll sort this mess and get back to you once the test pass. :)

[myint]

Closed by #139.