Ethairballoons

This release contains a **BREAKING** change.
With this release, callback responses for all functions of the library have changed to the **"error-first"** standard which means that the **first argument of any callback** returned from the library **is the error** and **the second one is the actual returned value**.

Apart from that, some dependencies were updated to the latest versions.

- updated dependencies e607ade
- updated dependencies 6fa9eff
- updated dependencies 0965397
- updated dependencies: 845d0bc
- Merge pull request 6 from petrosDemetrakopoulos/dependabot/npm_and_yarn/normalize-url-4.5.1 7fb33ec
- Bump normalize-url from 4.5.0 to 4.5.1 5537ac3
- updated libs 493b073
- updated some packages 618676b
- Merge pull request 5 from petrosDemetrakopoulos/dependabot/npm_and_yarn/y18n-4.0.1 fc38fac
- 1.2.0 d1e1387
- updated packages d90d79a
- Bump y18n from 4.0.0 to 4.0.1 b97fc2b
- updated eslint 4686e57
- updated solc package c845f56
- fixed deadme indentation e61b3ee
- fixed deadme indentation b331701
- Update README.md 1ef9299
- updated libraries 7bb3f32
- updated packages 41527f0

https://github.com/petrosDemetrakopoulos/ethairballoons/compare/v1.1.1...v1.3.0