Incorrect include_paths option format

[Igorbek]

Now this parameter parsed via hardcoded specified separator character ':'.
This is not correct on some platforms, for ex. on Windows =)
I think, it would be better to specify custom separator or array of strings (better).

[akhleung]

Sounds like a good idea. I'll make the change when I get a chance.

[Igorbek]

Thanks a lot!

[akhleung]

Oy, sorry for taking forever on this. The separator will be ';' on Windows and ':' everywhere else. Using an arbitrary separator at runtime will take more effort than I can spare at the moment!