Fuel: Kotlin naming conventions violation in RxFuel

[milk-machine]

Refactoring

Description

Add to com.github.kittinunf.fuel.rx.RxFuel methods toRxRespone(), toRxResponseString() etc. Deprecate old methods.

Why this is necessary?

Current naming violate Kotlin style: link

[markGilchrist]

@milk-machine are you going to submit a pr?

[SleeplessByte]

I would also like to have a reference what is "Kotlin style naming", so that we can link to it in CONTRIBUTING and/or a style guide.

[kittinunf]

Maybe we can link to official code style here. Spoiler alert, I wasn't very much following it.

[iNoles]

There is something like https://github.com/shyiko/ktlint. Oh course, it would increase the build times. :|

[SleeplessByte]

I actually think klint is smart to add! It should be fast (only a few seconds) as most linters usually run inline with your code anyway.

[SleeplessByte]

Added: #442