Adds handling of recursive mappings

[josepmedrano]

As discussed on issue 53 (#53)

[dimazen]

@josepmedrano thanks! I'll take a closer look tomorrow.

[Antondomashnev]

@dimazen hi, what's the status of this pull request review?

[Antondomashnev]

@josepmedrano please add nullability type specifier for all parameters of - (void)addRecursiveRelationshipMappingForProperty:(NSString *)property keypath:(NSString *)keyPath;

I've opened a respective PR in your fork. Unfortunately the tests are still failed, but I don't have time now to fix it.

@dimazen ping =)

[dimazen]

Hello, @Antondomashnev. Sorry for such a huge delay - I was busy on the project and then totally forgot about FEM and pending PRs.

Going to take a look at your PR today and merge if it is OK (it should be, I reviewed it before).
Also, I can roll out release today (1.1, lets say).

Regarding failing tests: they should be fine - I've fixed Travis CI integration, however, it won't rerun existing PRs unless you'll try to push something :)

Therefore I can merge @josepmedrano's changes and then your request and then merge to the master.

[Antondomashnev]

@dimazen that's sounds awesome

[dimazen]

@Antondomashnev I have a weekend tomorrow, so decided to postpone it until tomorrow's morning (since whole day is free). Hope it is ok. (But I'm keeping FEM in mind)

[Antondomashnev]

@dimazen don't worry I'm using the pod from my fork now, it's not urgent

[dimazen]

This PR has failing tests (fixing), I've merged it into current feature/FEM-53 branch where I'm also going to merge @Antondomashnev's changes.

[Antondomashnev]

Thanks @dimazen 🚀

[dimazen]

I'm planning to make a release on this weekends, that will also include documentation in headers, so thats why you don't see any new release with recursive mapping

[dimazen]

@Antondomashnev you can now grab 1.1 release from the CocoaPods :)

[Antondomashnev]

@dimazen amazing, thanks lot =)